Justin Bieber and Katy Perry at MuchMusic Awards

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Page last updated at 06:55 GMT, Tuesday, 19 June 2012 07:55 UK

Katy Perry arrives with a bunch of 'mini-mes' at the MuchMusic Awards in Toronto, Canada. The girls were dressed in outfits from Katy's previous videos. Katy won international video of the year and fave international artist.
Justin Bieber arrived with fellow Canadian, Carly Rae Jepsen and his baby brother Jaxon, who's only two and a half. Justin tweeted that Carly was a "superstar" and said he was "proud" of her. The pair have the same manager.
Carly also posed with a pair of models on the red carpet. She collected a hat-trick of trophies on the night, including the overall video of the year award for hit single Call Me Maybe.
Justin met some of his fans and also performed at the show. It was a good night for the 18-year-old who picked up international video of the year by a Canadian and the fave artist award.
Justin's girlfriend, Selena Gomez, wore a sparkling gold dress to the awards and had photos with some of the fans outside.
Nelly Furtado performed her recent song Big Hoops at the awards. LMFAO also took to the stage during the show.
Celebrity blogger Perez Hilton was also there and made sure he caught the photographers' attention with this massive afro wig.
British artist Ed Sheeran was at the awards to perform.
Katy Perry also sang at the MuchMusic Awards show in Toronto.
Flo Rida sang onstage with multiple award-winner Carly Rae Jepsen. Former American Idol winner Kelly Clarkson was also there.