PHOTOS: Backstage At iHeartFestival

- Niall Horan at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- P!nk & Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Kylie Jenner at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- David Spade at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Kesha at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Kesha at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Macklemore and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Macklemore at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Kings of Leon at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Kings of Leon and Woody at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Kings of Leon at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Enrique Santos, Elvis Duran & David Guetta at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- David Guetta at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Demi Lovato and Craig Robinson at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Jared Leto, Ryan Seacrest and Rob Lowe at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Heidi Klum & Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Thirty Seconds to Mars & Woody at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Thirty Seconds to Mars at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Jared Leto at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Rob Lowe at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Elvis Duran and French Montana at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles & Chris Stapleton at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles & Chris Stapleton at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Niall Horan at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Niall Horan at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles & Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- The Weeknd at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- The Weeknd at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Jared Leto at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- DJ Khaled at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Corinna Kopf at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Grand prize winner Jocelyn Kuleck & Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Corinna Kopf with Bethany Watson & Kane at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Elvis Duran and Kane at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- All Time Low with Bethany Watson & Kane at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Hey Violet at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- PRETTYMUCH at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Johnjay Van Es and PRETTYMUCH at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Demi Lovato at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Impractical Jokers at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Impractical Jokers at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Flume at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- P!nk & Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Chris Stapleton at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Heidi Klum & Kelsea Ballerini at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Heidi Klum & Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Elvis Duran and Danielle Monaro at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Heidi Klum, Elvis Duran & Danielle Monaro at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Travis Scott at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Heidi Klum at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Bebe Rexha at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- David Guetta & Enrique Santos at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- David Guetta at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- P!nk at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- DJ Khaled and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- DJ Khaled and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Heidi Klum & Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- James Maslow & Danielle Monaro at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- James Maslow at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Niall Horan, Danielle Monaro & Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Niall Horan at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Jared Leto at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Demi Lovato at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Perrie Edwards at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Little Mix at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Little Mix at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles and Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Harry Styles at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Johnjay Van Es and Little Mix at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Bebe Rexha at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Bebe Rexha, Danielle Monaro & Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Shannon Leto and Jared Leto at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Thomas Rhett at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- French Montana at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- The Breakfast Club and French Montana at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- David Guetta & John Sykes at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Wayne Coyne at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Wayne Coyne at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Little Mix and Enrique Santos at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Alicia Silverstone at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- French Montana and PRETTYMUCH at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- James Van Der Beek at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- French Montana and Bebe Rexha at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Thirty Seconds to Mars at the iHeartRadio Music Festival at T-Mobile Arena on September 22, 2017 in Las Vegas, Nevada.

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- Kesha at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Cheat Codes at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- LIGHTS at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- LIGHTS at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett, Bobby Bones & Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Cheat Codes at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Cheat Codes at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Cheat Codes at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- LIGHTS at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- In Real Life at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Acting Natural at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- In Real Life at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- In Real Life and Danielle Monaro at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Lili Reinhart, Casey Cott and Camila Mendes at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Lili Reinhart and Camila Mendes at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Julia Michaels at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Julia Michaels and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Julia Michaels at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Macklemore at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Macklemore and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Thomas Rhett, Tom Poleman and Bobby Bones at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Khalid at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Niall Horan at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- David Spade and Heidi Klum at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Miley Cyrus at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Taylor Lautner at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- DJ Khaled at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Danielle Monaro and Ryan Seacrest at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Ryan Seacrest and Elvis Duran at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Big Sean at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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- Johnjay Van Es and Macklemore at the iHeartRadio Music Festival at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada.

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