Justin Bieber performs at the 2012 Teen Choice Awards.

Two generations of Pop music superstars rocked the 2012 Teen Choice Awards this evening. Following a lively performance of ‘Settle Down’ by No Doubt, Justin Bieber took the energy even higher with his own showing alongside rapper Big Sean.

Backed by an army of dancers and an electrifying lights show, Bieber performed renditions of ‘Boyfriend’ and ‘As Long As You Love’ me with Sean. Whether he was actually singing live is up for you to decide by watching the Teen Choice Awards footage below:

Photo of Kevin Winter/Getty Images North America

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