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 — The president and first lady will have their traditional first dance Tuesday at the 'Neighborhood Ball.'By Gil Kaufman Beyoncé Photo: Al Pereira/ WireImage Grammys are nice. Golden Globe and Oscar nominations aren't bad, either. But singi... more info

MTV.com News — President-elect Obama inspired quite a few songs, and he lists the songs that inspire him.By Jayson Rodriguez Barack Obama Photo: Chip Somodevilla/Getty Images Sure, President-elect Barack Obama inspired millions of people to vote for him ... 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 — Classic song is connected with 'Cadillac Records,' which B recently starred in.By MTV News staff Beyoncé Photo: Gabriel Bouys/Getty Images Beyoncé Knowles has disclosed the song she'll be singing for Barack and Michelle Obama's first dan... more info