British singer Joss Stone ' Photos
British singer Joss Stone poses the red carpet before the MTV Europe Awards ceremony in Munich on November 1, 2007. (Reuters/Michael Dalder)
Wango Tango concert
Miley Cyrus performs at the 102.7 KIIS-FM's Wango Tango concert on Saturday, May 10, 2008, in Irvine, Calif. (AP Photo/Gus Ruelas)
Alicia Keys' concert
Singer Alicia Keys performs during her 'As I Am Tour' concert stop in Los Angeles on May 5, 2008. (AP Photo/Matt Sayles)
MTV Music Awards
Kate Perry performs at the 2008 MTV Video Music Awards held at Paramount Pictures Studio Lot on Sunday, September 7, 2008, in Los Angeles. (AP Photo/Kevork Djansezian)
Fashion Rocks show
Model Lydia Hearst arrives for the 2008 Fashion Rocks concert to begin the 2009 Spring/Summer Fashion Week in New York September 5, 2008. (Reuters/Joshua Lott)
Fashion Rocks show
Beyonce performs during the 2008 Fashion Rocks concert to begin the 2009 Spring/Summer Fashion Week in New York. (Reuters/Lucas Jackson)
American singer Madonna: Sticky & Sweet | Image Gallery
U.S. singer Madonna performs on the opening night of her 'Sticky & Sweet' tour at the Millennium Stadium in Cardiff on August 23, 2008. (Reuters/Luke MacGregor)