Aerosmith, including frontman Steven Tyler, drummer Joey Kramer and guitarist Joe Perry, perform an exclusive gig to promote "Hyde Park Calling" Feb. 19, 2007, at The Hard Rock Cafe in London. The event, presented by Hard Rock, is set to take place on June 23 and 24 this year and the band will headline on the second of the two days at their first U.K. concert date in eight years.
Christina Aguilera performs during a sold-out show at the Mandalay Bay Events Center March 3, 2007 in Las Vegas, Nev. Aguilera is touring in support of the album, "Back to Basics."
Singer Bryan Adams performs during his concert in Montevideo, Uruguay, March 2, 2007.
P. Diddy and Snopp Dogg perform on stage at the Hartwall Arena in Helsinki, Finland, March 9, 2007. This concert marked the beginning of their European Tour.
Eric Clapton performs during a sold-out concert at the MGM Grand Garden Arena March 10, 2007, in Las Vegas, Nev. Clapton is touring in support of the album, "The Road to Escondido."
Patrick Stump, center, lead singer of the music group Fall Out Boy, performs with fellow bandmates Joe Trohman, left, and Pete Wentz, right, following an announcement Jan. 5, 2007 in Torrance, Calif., that the band is headlining the 2007 Honda Civic Tour.
Nelly Furtado performs during the German television show "Wetten, dass...?" (Bet it...?) in the western German town of Dortmund March 3, 2007.
Josh Groban performs at the Van Andel Arena Feb. 20, 2007, in Grand Rapids, Mich.
John Mayer performs in concert in Grand Rapids Mich., Feb. 22, 2007.
John Mayer performs on stage at Madison Square Garden Feb. 28, 2007 in New York.
Joss Stone plays at the Koko Club in London, England, March 6, 2007.
Singer Leo Sayer performs at the Palms at Crown on March 2, 2007 in Melbourne, Australia.
Merle Haggard performs at the Aladdin Theater for the Performing Arts in Las Vegas March 10, 2007. Haggard is touring with Willie Nelson and Ray Price.
Willie Nelson performs at the Aladdin Theater for the Performing Arts in Las Vegas March 10, 2007. Nelson is touring with Merle Haggard and Ray Price.
South Korean pop singer Rain performs during his concert at AsiaWorld Expo Arena Jan. 12, 2007 in Hong Kong, China. Rain starts his second World Tour in three years, titled "Rain's Coming 06/07 Rain World Tour."
Rihanna performs during the Jay-Z "Rock tha Block" tour at Rod Laver Arena Oct. 28, 2006 in Melbourne, Australia.
Colombian singer Shakira performs on stage during a concert in Zurich, Switzerland, Feb. 21, 2007.
Sting gestures during his first concert in Germany, in Munich, Feb. 25, 2007.
Taylor Hicks performs at the Mobile Civic Center Theater Feb 27, 2007, in Mobile, Ala.
Tom Jones performs at the International Song Festival in Vina del Mar, Chile, Feb. 22, 2007.