Mon, 21 May 2012 13:28:54 GMT
Katy Perry rocks the 2012 Billboard music awards

2012 Billboard Music Awards

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Earlier in the evening, Carly Rae Jepson's mentor, aka Justin Bieber, told MTV: "[It's] not a competition. It's all love. We're all a family. Carly is my artist, and I'm Usher's artist, so it's kind of cool that we're all performing here, together."