Bono and Beyonce have joined Bruce Springsteen, among the stars kicking off Barack Obama's presidential inauguration celebrations next weekend.
A host of stars will perform at a free show at Washington DC's Lincoln Memorial on Sunday.
As well as Bono, Beyonce and Springsteen, the all-star concert will feature Mary J. Blige, Garth Brooks, Usher, Shakira, and Sheryl Crow.
The show is being billed We Are One: The Obama Inaugural Celebration at the Lincoln Memorial.
Queen Latifah, Jamie Foxx and Denzel Washington will be among those giving historical readings at the event.
Obama will officially become the new US president on 20 January.
On the eve of the big event, the Beastie Boys and Sheryl Crow will co-headline the Hey, America Feels Kinda Cool Again event at Washington's 9:30 club.
Also part of the 10-day celebrations are WAR, Marc Anthony, Wynton Marsalis, Josh Groban, John Legend, Stevie Wonder and John Mellencamp.
Soul queen Aretha Franklin is hotly tipped to perform at the inauguration itself.