Justin Bieber performed live at the 2012 Teen Choice Awards tonight, and brought out Big Sean for "As Long As You Love Me." Bieber started off with his smash hit "Boyfriend," which was met with heavy screams and cheers by the Teen Choice Awards audience, before moving into his new single with Big Sean. Watch the performance above, and look for the video for "As Long As You Love Me" to drop very soon.

[via Miss Info]