At the 2012 American Music awards, Justin Bieber thanked his mom for "always believing" in him as he picked up the artist of the year award, and other winners included Nicki M... | More Info

Bieber rules the AMAs

AP

At the 2012 American Music awards, Justin Bieber thanked his mom for "always believing" in him as he picked up the artist of the year award, and other winners included Nicki Minaj and Taylor Swift.

Bieber rules the AMAs

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