UH yeah, OH Mhhhhmmmm, BAY BAAAAAYYYY.
Justin Bieber was spotted bustin' MANY a move during rehearsals for TONIGHT's MuchMusic Video Awards!
And, as always, boy was looking sexy in his signature cut-off sleeve vest.
We can't even DEAL with all of the hot, melted celebrity stuffing in tonight's MMAV pie…
Check out Justin, the dancing fool [...]