Former President Barack Obama is getting a little help from his friends in celebrating the opening of his presidential museum in Chicago. The guestlist for Thursday's dedication ceremony includes Bruce Springsteen, Stevie Wonder, Christina Aguilera and Bono, along with former presidents George W. Bush and Bill Clinton. Obama and former first lady Michelle Obama are expected to give remarks. The invite-only celebration will be livestreamed and kicks off a weekend of events centered around the Obama Presidential Center, which opens to the public on Juneteenth. General admission tickets for the center are sold out through the end of October.