ET Online — Inauguration activities for President-elect Barack Obama kick off in Washington, D.C., with a star-studded concert today featuring U2, Bruce Springsteen, Beyoncé Knowles, John Mellencamp and others. Mellencamp, shown above doing a sound che... more info

MTV.com News — U2, Beyonce, Bruce Springsteen and other superstars performed at the opening celebration.By Jocelyn Vena, with reporting by Erica Anderson and Gil Kaufman Beyoncé performs with Bono, Stevie Wonder and more on Sunday Photo: Mark Wilson/ Getty I... more info

MTV.com News — U2, Beyonce, Bruce Springsteen and other superstars performed at the opening celebration.By Jocelyn Vena, with reporting by Erica Anderson and Gil Kaufman Beyoncé performs with Bono, Stevie Wonder and more on Sunday Photo: Mark Wilson/ Getty I... more info

MTV.com News — Previous performers and the Obamas themselves join B in singing 'America the Beautiful.'By Jayson Rodriguez Photo: Justin Sullivan/ Getty Images Beyoncé brought down the house Sunday afternoon (January 18) as she closed out the "We Are One... more info

MTV.com News — First single, 'Get on Your Boots,' to premiere on Dublin radio Monday.By Gil Kaufman U2's Bono Photo: Frank Micelotta/ Getty Images After more than a year of recording several albums' worth of material on several continents with a trio of ... more info

MTV.com News — All your favorite stars will be there — but when and where?By Jocelyn Vena Kanye West Photo: Vince Bucci/Getty Images In the coming days, the nation's capital will become inundated with an onslaught of celebrities. Everyone from Jay-Z to... more info

MTV.com News — All your favorite stars will be there — but when and where?By Jocelyn Vena Jay-Z Photo: Johnny Nunez/ WireImage In the coming days, the nation's capital will become inundated with an onslaught of celebrities. Everyone from Jay-Z to Miley... more info

MTV.com News — 'It's absolutely an honor to be able to perform,' Nick Jonas says of 'Kids' Inaugural Concert.'By Jocelyn Vena The Jonas Brothers Photo: Gregg DeGuire/ WireImage Demi Lovato calls it a "huge honor" to be a part of the Kids' Inaugural Conce... more info

MTV.com News — Sunday show at Lincoln Memorial will include Bruce Springsteen, Usher, Will.I.Am, Stevie Wonder, Queen Latifah, more.By Gil Kaufman Beyoncé Photo: Bob Levey/ WireImage What kind of event could get U2, Beyoncé, Mary J. Blige, Bruce Spring... more info

ContactMusic — Beyonce, U2 and Stevie Wonder are among the stars signed up to perform at US president-elect Barack Obama's inauguration party.Bruce Springsteen, Usher and Mary J ... more info