Justin Bieber and girlfriend Selena Gomez have been spotted showing off their edgy side at a rock concert.
Canadian teen singing sensation Justin and former Disney star Selena threw glowsticks in the air as they rocked out at a concert from US band Phish in California, according to The Hollywood Reporter.
Justin - who was first seen near the soundboard, surrounded by a group of pals - was apparently taken to the concert by his guitarist and musical director Dan Kanter, who is a big fan of the band.
During the interval, the Baby singer was taken to meet the jam band backstage, where they discussed music.
He and Selena - who was dressed in a trendy 70s-style black hat - also posed for snaps with the band and their friends and family.