Singer Wycelf Jean entertains the crowd at the 50 Million Pound Challenge in Miami on May 19, 2007. Several celebrities came together to urge people to eat healthy and lose weight.
Irish pop singer Ronan Keating performs on stage during a concert of his "Bring You Home" Tour in the Swiss Life Arena in Lucerne, Switzerland, on May 18, 2007.
British rock band "The Who" lead singer Roger Daltrey, left, accompanied by guitarist and vocalist Pete Townshend, performs during a concert at the Atlantic Pavilion in Lisbon, Portugal, on May 16, 2007. The band, promoting its latest album "Endless Wire", opened its 2007 European tour in Lisbon.
Country singer Keith Urban performs on stage at the first Sydney date of his "Love, Pain and the Whole Crazy Thing" tour at the Acer Arena on May 15, 2007
Rufus Wainwright performs before signing copies of his new album, "Release The Stars," at Virgin Megastore on Oxford Street in London on May 14, 2007.
Jimmy Buffett performs at Jazz At Lincoln Center's 6th Annual Spring Gala in New York on May 14, 2007.
Gretchen Wilson performs at the Fremont Street Experience in Las Vegas on May 13, 2007, during the "Vegas Goes Country" Week.
Colombian singer Shakira performs at the Foro Sol in Mexico City on May 13, 2007.
Country singer Kenny Chesney performs in concert in Grand Rapids, Mich., on May 10, 2007.
Prince performs a private gig at KoKo in London on May 10, 2007.
Prince gestures during a press conference in London on May 8, 2007. Prince will play 21 shows in London this summer, with tickets priced at 31.21 pounds, or $62, in a tribute to his "3121" album. "The Earth Tour," set to begin August 1, will be Prince's only performances in Europe this year.
Neil Tennant, left, and Chris Lowe of the British pop band Pet Shop Boys are seen during a concert in Berlin on May 7, 2007, during the start of the band's German tour.
David Bisbal performs during his concert in Tegucigalpa, Honduras, on May 7, 2007.
Willie Nelson performs onstage during the Stagecoach Music Festival, held at the Empire Polo Field in Indio, Calif., on May 5, 2007.
Musician Lucinda Williams performs onstage during day one of the Stagecoach Music Festival, held at the Empire Polo Field in Indio, Calif., on May 5, 2007.
Singer Bjork performs at Radio City Music Hall in New York on May 2, 2007.
Singer Josh Groban performs on stage in concert during a promotional tour for his new album "Awake" at the Utzon Room at the Sydney Opera House in Australia on May 2, 2007.