US President-elect Barack Obama (L) greets performers at the end of the 'We Are One" concert, one of the events of Obama's inauguration celebrations, at the Lincoln Memorial in Washington on January 18, 2009. A galaxy of stars including Bruce Springsteen, U2 and Stevie Wonder will usher Obama into the White House, with a half-million people expected to brave the cold to celebrate the first African-American president. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP via Getty Images)
