MTV.com News — Our intrepid reporter sneaks onstage during warm-ups for the big inauguration celebration!By Sarah Maslin Nir Photo: MTV News Related Artists Bruce Springsteen Bono more info

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

People.com — Sheryl Crow, U2 and Garth Brooks offer inspirational performances on the steps of the Lincoln Memorial more info

MTV.com News — It somehow made sense for an Irish band to perform at 'We Are One' inaugural concert.By Jocelyn Vena U2's Bono and Edge perform at Lincoln Memorial on Sunday Photo: Justin Sullivan/ Getty Images During the "We Are One" inaugural concert in... more info

MTV.com News — Singer's appearance on CNN wearing an eye patch before inaugural performance set the Web abuzz.By Jayson Rodriguez James Taylor performs at the Lincoln Memorial on Sunday Photo: Justin Sullivan/ Getty Images President-elect Barack Obama's ... more info

MTV.com News — Singer's appearance on CNN wearing an eye patch before inaugural performance set the Web abuzz.By Jayson Rodriguez James Taylor performs at the Lincoln Memorial on Sunday Photo: Justin Sullivan/ Getty Images President-elect Barack Obama's ... more info

MTV.com News — Sam Cooke's civil-rights classic is performed by Jon Bon Jovi, Bettye LaVette at 'We Are One' event.By Jocelyn Vena Bettye LaVette and Jon Bon Jovi perform "Change is Gonna Come" on Sunday Photo: Chip Somodevilla/ Getty Images At the "We A... more info