Carly Rae Jepsen and Justin Bieber at Wango Tango 2012

Call me, maybe Justin Bieber? The Biebs introduces his Canadian pop star discovery, Carly Rae Jepsen, of 'Call Me Maybe' fame, to the waiting crowd at Wango Tango.

INTERVIEW: Carly Rae Jepsen on the man behind the song

Photo by Getty Images May 14, 2012

PHOTOS: WANGO TANGO 2012

Justin Bieber flashes his undies while Perez Hilton flashes his chest. Check out the star antics at KIIS FM's annual concert event, Wango Tango.

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