Justin Bieber, Lady Gaga, Avril Lavigne and More: Big Photos Of The MuchMusic Video Awards 2011 (PHOTOS)

First Posted: 06/20/11 08:06 AM ET   Updated: 08/20/11 06:12 AM ET

Lady Gaga won two awards and provided a double shot of her trademark edgy, eccentric stage theatrics at Sunday's MuchMusic Video Awards — but it was a surprise appearance from beloved teen-pop star Justin Bieber that really sent fans into a frenzy. Read more here.

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Filed by Brodie Fenlon  |