Other guests to grace the red carpet at the ceremony included Katy Perry, Conor Maynard, Selena Gomez, Ed Sheeran, Modern Family's Rico Rodriguez, Nelly Furtado, Glee's Darren Criss and star Jesse Metcalfe.
Perry, Bieber and LMFAO also performed at the event.
The winners of the evening are as follows:
Video Of The Year: Call Me Maybe by Carly Rae Jepsen
International Video Of The Year: Last Friday Night (T.G.I.F) by Katy Perry
International Video Of The Year: Sexy And I Know It by LMFAO
International Video Of The Year By A Canadian: Boyfriend by Justin Bieber
UR Fave Video: Call Me Maybe by Carly Rae Jepsen
UR Fave Artist: Justin Bieber
UR Fave International Artist: Katy Perry
Most Watched Video of the Year: Call Me Maybe by Carly Rae Jepsen