Justin Bieber refused to let his support band BURNHAM get away with a tour bus prank - he exacted revenge on the group during their concert on Tuesday (23Nov10).
The Baby hitmaker wrapped up his My World trek with an appearance in Toronto, Canada and his opening act played a practical joke on Bieber to mark the end of the gigs, filling his tour bus bedroom with coloured plastic balls.
The teenage pop star got his own back by collecting all the balls and pelting the band with them during their performance at The Air Canada Centre on Tuesday.
After the show, Bieber took to his Twitter.com page to tell fans, "Toronto was crazy tonight. Proud to be Canadian!!"