Two robots in white join the night three headliners for the song "Get Lucky." Also: Beck makes an appearance.
Coachella 2014 has featured a slew of unannounced guests over its two-weekend bow, but perhaps the biggest surprise of all came on Sunday night as Arcade Fire performed its headlining slot.
It was then that frontman Win Butler announced "some very special guests and we're just going to bring them up up front." Some in the crowd claim to have heard Butler say "Paft Dunk."