Paula Fuga is a very popular singer in Hawaii and she has performed with Jack Johnson on numerous occasions. When Jack headlined the Mile High Music Fest in 2010, Paula joined him on stage and in a special KBCO Studio C session recorded on site. Paula Fuga is releasing a new album "Rain on Sunday" June 18 on Brushfire Records and one of the songs is a duet with Jack Johnson. Their voices mesh so nicely together! Added bonus on "If Ever," is the unmistakable sound of Ben Harper's lap-steel guitar. (photo: Getty Images)