INDIO, Calif (Reuters) - British rockers Radiohead and folk band Bon Iver got thousands of fans dancing on day two of the Coachella Valley Music and Arts Festival, and warm, blue skies chased away the cold and rain in time for Sunday's big closing act - Dr. Dre and Snoop Dogg. Buzz was running high ahead of the rap duo's headlining appearance, with rumors rife about potential surprise guests, as well as a hologram resurrecting late rappers Tupac Shakur and Nate Dogg, that are thought to be joining the pair for their hit, "California Love. ...