GETTY IMAGES/Simon Fergusson
Hollywood actor Jared Leto and his band, "30 Seconds To Mars," perform on stage in concert in support of their second album, "A Beautiful Lie", at the Festival Hall in Melbourne, Australia, on May 2, 2007.
GETTY IMAGES/Simon Fergusson
Dave Matthews, Carter Beauford and Stefan Lessard of the Dave Matthews Band perform on stage in concert at the Vodafone Arena in Melbourne, Australia, on May 1, 2007.
GETTY IMAGES/Kristian Dowling
Pop star Pink plays the first Melbourne night of her "I'm Not Dead" tour at the Rod Laver Arena in Melbourne, Australia, on April 26, 2007. Pink has returned to Australia for the second year to finish her world arena tour, which includes 30 dates in the country.
GETTY IMAGES/Sandra Mu
Anthony Kiedis of the Red Hot Chili Peppers performs on stage in concert on the first night of the New Zealand leg of their tour at the Vector Arena in Auckland on April 21, 2007.
GETTY IMAGES/Paul McConnell
Beyonce Knowles performs on stage at the opening night of her "B'day" world tour at the Acer Arena in Sydney, Australia, on April 21, 2007.
GETTY IMAGES/Paul Kane
Pop star Pink performs at the Challenge Stadium in Perth, Australia, on April 18, 2007, in the first stop of the Australian leg of her "I'm Not Dead" tour.
GETTY IMAGES/Lisa Maree Williams
John Mayer performs on stage in concert at the Sydney Entertainment Centre in Australia on April 12, 2007.
GETTY IMAGES/Kristian Dowling
Flea and John Frusciante of the Red Hot Chili Peppers perform on stage in concert on the first night of their Australian tour at the Sidney Myer Music Bowl in Melbourne on April 8, 2007.
AP Photo/The Herald, Amy Reed
Singer Chubby Checker performs on April 25, 2007, for Newington, Conn., town employees, local government officials and Newington Chamber of Commerce members during a sneak preview at a Stew Leonard's food store.
GETTY IMAGES/Dave Hogan
Natasha Bedingfield performs on stage at the launch party for her new album, "N.B.," in association with Yahoo! Music at the Palais in Berlin, Germany, on April 26, 2007. Her second album was released on April 30 and features her single "I Wanna Have Your Babies."
AP Photo/Branimir Kvartuc
Cansei de Ser Sexy lead singer Luisa Hanae Matsushita, stage name Lovefoxxx, performs with her band at the Coachella Valley Music and Arts Festival in Indio, Calif., on April 29, 2007.
AP Photo/Judi Bottoni
Singer/songwriter Norah Jones performs at the New Orleans Jazz and Heritage Festival on April 28, 2007.
AP Photo/Peter Morrison
Justin Timberlake sings to a sellout crowd in Belfast, Northern Ireland, on April, 24, 2007. Timberlake launched the start of his European tour in Belfast.
AP Photo/Lucy Pemoni
Eddie Vedder, lead singer of the rock group Pearl Jam, sings at the fourth annual Kokua Festival at the Waikiki Shell in Honolulu on April 21, 2007. The Kokua Festival is a benefit concert for the Kokua Hawaii Foundation, which promotes environmental education and protection in Hawaii.
GETTY IMAGES/Andreas Gebhard
Mexican singer Paulina Rubio performs during her Love, Light and Sound concert at the Bilbao Exhibiton Center in Barakaldo, Spain on April 19, 2007.
AP Photo/Jeff Christensen
Norah Jones performs during her concert in New York's Madison Square Garden on April 18, 2007.
AP Photo/Gary Malerba
Holding flowers, singer Diana Ross reaches out to the audience at her concert at the Palace of Auburn Hills in Auburn Hills, Mich. on April 16, 2007.
AP Photo/Marcelo Hernandez
Ian Anderson, lead singer and flute player of Jethro Tull, performs with his rock band during a concert in Montevideo, Uruguay, on April 19, 2007.
AP Photo/Rick Scuteri
Keb' Mo' performs in a benefit concert for CASA, the Center For Prevention of Abuse and Violence, with Joe Bonamassa in Phoenix on April 15, 2007.
AP Photo/Keystone, A. Della Bella
Roger Waters, British rock musician and member of the legendary band Pink Floyd, performs on stage during his concert at the Hallenstadion in Zurich, Switzerland, on April 11, 2007.