Bruce Springsteen performs during his concert with the Seeger Sessions Band at the Greek Theater in Los Angeles, on June 5, 2006. Springsteen's recent album, "We Shall Overcome: The Seeger Sessions," is devoted to folk songs popularized by Pete Seeger.
Musician Wyclef Jean performs on June 1, 2006, in the General Assembly Hall of the United Nations during an event entitled "An Evening of Remembrance and Hope: Uniting the World Against AIDS."
Singer Jon Bon Jovi performs in the Stade de Suisse in Berne, Switzerland, on May 31, 2006.
Darryl "DMC" McDaniels performs "Just Like Me" with Jen Chapin, left, daughter of the late singer Harry Chapin, at the annual World Hunger Year awards ceremony in New York on June 5, 2006. WHY, founded by Harry Chapin, is dedicated to fighting hunger and poverty. McDaniels was presented with the group's humanitarian award for his socially conscious music and actions.
Country music superstar Toby Keith greets U.S. troops after a Memorial Day concert on May 29, 2006, in Iraq. It's Keith's fourth USO tour to perform for troops in Germany and Iraq.
Singer Fergie, right, of the Black Eyed Peas, performs at a benefit concert in Johannesburg, South Africa, on May 28, 2006.
Puerto Rican-born singer Ricky Martin performs during a concert as a part of the annual Beittedine International Festival in Beirut, Lebanon, on May 27, 2006. Martin was in Lebanon for the first time for a one-night concert.
Russell Crowe performs live onstage with his band, The Ordinary Fear of God, at the New York Society for Ethical Culture on May 17, 2006.
Singer Elvis Costello raises his guitar as he performs with Keith Lockhart and the Boston Pops on their opening night in Boston on May 10, 2006.
Singer Carrie Underwood performs before NASCAR's Coca-Cola 600 at Lowe's Motor Speedway in Concord, N.C., on May 28, 2006.
Singer Kanye West performs outdoors during a taping of "The Ellen DeGeneres Show" on May 10, 2006, at the Johnny Carson Park in Burbank, Calif.
Jamaican singer Damian "Jr. Gong" Marley, right, son of reggae legend Bob Marley, performs at the annual KROQ Weenie Roast summer concert in Irvine, Calif. on May 13, 2006. The daylong festival of alternative rock was headlined by the Red Hot Chili Peppers.
Dave Grohl of The Foo Fighters performs a surprise solo acoustic set during the annual KROQ Weenie Roast summer concert in Irvine, Calif., on May 13, 2006. The Red Hot Chili Peppers headlined the daylong festival of alternative rock.
Leonard Cohen sings during a free concert in Toronto on May 13, 2006.
The Red Hot Chili Peppers perform during a concert for the Fuse network on May 9, 2006, in New York. The concert aired May 20 on Fuse's "Breaking the Record: Red Hot Chili Peppers" show. The group's new album, "Stadium Arcadium" recently hit stores. Left to right are: bassist Flea, lead singer Anthony Kiedis, drummer Chad Smith (not pictured) and lead guitarist John Frusciante.
Singer Rihanna, right, performs at 102.7 KIIS-FM's Wango Tango concert in Irvine, Calif., on May 6, 2006.
Singer Nick Cannon performs at 102.7 KIIS-FM's Wango Tango concert in Irvine, Calif., on May 6, 2006.
Country music star Travis Tritt plays his guitar before a large crowd at the Lauderdale County Agri-Center in Meridian, Miss., during the Jimmie Rodgers Memorial Festival on May 27, 2006. The festival is an annual event in Meridian, the birthplace of the legendary country performer.
Singer Ne-Yo, left, performs at the Wango Tango concert in Irvine, Calif., on May 6, 2006.
Kevin Cronin, left, Bruce Hall, Dave Amato and drummer Bryan Hitt, right, of REO Speedwagon entertain the crowd at the West Bank Stage during the Wichita River Festival's Legends of Rock Concert on May 13, 2006, in Wichita, Kan.