Justin Bieber

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Justin Bieber performs with backup dancers during the second night of KIIS FM's Jingle Ball at Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Photo by Chris Pizzello/Invision/AP)

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Justin Bieber performs during the second night of KIIS FM's Jingle Ball at Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Photo by Chris Pizzello/Invision/AP)

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Justin Bieber performs during the second night of KIIS FM's Jingle Ball at Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Photo by Chris Pizzello/Invision/AP)

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Justin Bieber performs during the second night of KIIS FM's Jingle Ball at Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Photo by Chris Pizzello/Invision/AP)

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Pop star Justin Bieber performs during the second night of KIIS-FM's "Jingle Ball" at the Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Chris Pizzello/Invision/AP)

Ryan Seacrest, left, and singer Alicia Keys introduce Justin Bieber during the second night of KIIS FM's Jingle Ball at Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Photo by Chris Pizzello/Invision/AP)

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Justin Bieber performs during the second night of KIIS FM's Jingle Ball at Nokia Theatre LA Live on Monday, Dec. 3, 2012, in Los Angeles. (Photo by Chris Pizzello/Invision/AP)

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South Korean rapper PSY’s “Gangnam Style” had been viewed 827 million times on YouTube as of Monday afternoon, ahead of Justin Bieber’s “Baby.” (Associated Press)

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Justin Bieber performs during the halftime show at the CFL Grey Cup championship football game between the Toronto Argonauts and the Calgary Stampeders on Sunday, Nov. 25, 2012, in Toronto. (AP Photo/The Canadian Press, Sean Kilpatrick)

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Justin Bieber will not face charges related to a scuffle in May with a photographer outside a theater. (Associated Press)

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Justin Bieber accepts the award for favorite album - pop/rock for 'Believe' at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by John Shearer/Invision/AP)

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Justin Bieber accepts the award for artist of the year as his mom Pattie Malette looks on at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

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Justin Bieber accepts the award for favorite male artist - pop/rock at the 40th Annual American Music Awards on Sunday Nov. 18, 2012, in Los Angeles. (Photo by John Shearer/Invision/AP)

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Justin Bieber, right, kisses his mother Pattie Mallette as they arrive at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)