9 of 22: *** FILE *** Singer Chris Brown performs in this Saturday, Dec. 6, 2008 file photo in Anaheim, Calif. Brown has been named Billboard's top artist of 2008. "It's bigger than what I can ever imagine. It's unexpected totally, so it's a surprise," Brown said in an interview on Thursday Dec. 11, 2008. (AP Photo/Shea Walsh, FILE) (AP Photo/ Shea Walsh)

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