Singers Jordan Knight and Deborah Gibson sing one of the songs from Knight's upcoming album, "Love Songs," at The Cutting Room, Tuesday, Aug. 8, 2006, in New York.
Country singer Gretchen Wilson performs at the Buffalo Chip Campground at the Sturgis Motorcycle Rally Tuesday, Aug. 8, 2006, in Sturgis, S.D.
Country music singer Keith Urban plays a song during his performance at WE Fest Saturday, Aug. 5, 2006, at the Soo Pass Ranch, in Detroit Lakes, Minn. Urban was one of the headliners at the 24th anniversary of what is billed as country music's largest festival.
Madonna performs on stage during her 'Confessions Tour' concert at Rome's Olympic stadium Sunday, Aug. 6, 2006.
Rolling Stones vocalist Mick Jagger, left, and guitarist Ronnie Wood, right, perform on stage during a concert at the military airport base in Duebendorf, Switzerland, as part of the band's "A Bigger Bang" tour Saturday, Aug. 5, 2006.
Busta Rhymes performs as an opening act for Mariah Carey during the first concert of her "Emancipation of Mimi" tour in Miami, Saturday, Aug. 5, 2006.
Madonna performs in one of her worldwide "Confessions Tour" concerts at Wembley Arena in London, Tuesday, Aug. 1, 2006.
RBD vocalist Anahi performs at the Reventn Super Estrella concert at the Los Angeles Coliseum in Los Angeles on Saturday, July 29, 2006.
Ricky Martin performs during the Reventn Super Estrella concert at the Los Angeles Coliseum in Los Angeles on Saturday, July 29, 2006.
Singer and pianist Billy Joel performs on stage during his free concert n front of Rome's Colosseum, Monday, July 31, 2006.
Billy Joel performs to an audience of 47,000 at Croke Park, supported by comedian Peter Kay, on July 29, 2006, in Dublin, Ireland.
Madonna performs on stage at the first UK concert of her world tour promoting her 'Confessions On A Dancefloor' album at Millennium Stadium on July 30, 2006, in Cardiff, Wales.
Singer Chris Brown performs at the Pepsi Smash Concert at the Kodak Theater on July 29, 2006, in Los Angeles.
Black Eyed Peas rapper Allen Pineda popularly known as Apl.de.ap, center, and William James Adams Jr., second from left, perform at the Malacanang presidential palace in Manila July 27, 2006. Pineda, a Filipino-American rapper, says proceeds of the concert in will go to victims of a February landslide that buried an entire village in central Philippines and left more than 1,000 people dead.
Ron Wood and Mick Jagger of the Rolling Stones perform at Ernst-Happel stadium during their "A Bigger Bang" world tour Friday, July 14, 2006, in Vienna. The Stones return to North America in September as part of their ongoing tour.
Black Eyed Peas singer Fergie performs during a concert, Tuesday, July 25, 2006, in Taipei, Taiwan. Riding on the back of last-year's album "Monkey Business," the group's world tour included stops in Tokyo, China and Moscow.