Katy Perry is seen backstage at the Grammy Nominations Concert on Wednesday, Dec. 2, 2009, in Los Angeles. AP Photo Musician Katy Perry sticks out her tongue after announcing the best rock album nominees during The Grammy Nominations Concert Live - Countdown to the Music's Biggest Night event in Los Angeles, California December 2, 2009. Winners in all categories of the 52nd annual event will be announced at a televised awards ceremony on January 31, 2010. Reuters photo The Black Eyed Peas from left, will. i. am, apl.de.ap,Fergie, and Taboo are seen backstage at the Grammy Nominations Concert on Wednesday, Dec. 2, 2009, in Los Angeles. AP photo Nick Jonas is seen backstage at the Grammy Nominations Concert on Wednesday, Dec. 2, 2009, in Los Angeles. AP photo Host LL Cool J (R) performs during the opening act of The Grammy Nominations Concert Live - Countdown to the Music's Biggest Night event in Los Angeles, California, December 2, 2009. The 52nd annual Grammy Awards will be presented January 31, 2010 at the Staples Center in Los Angeles. Reuters photo Stars are seen at the Grammy Nominations Concert on Wednesday, Dec. 2, 2009, in Los Angeles. Sources: SINA.com
