Coachella 2014: Arcade Fire Set Features 'Daft Punk' Surprise

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."

COACHELLA 2014: FULL COVERAGE

Enter: what looked to be the two members of Daft Punk dressed all in white and wearing their trademark robot hats. They proceeded to perform a slowed-down, slinky version of "Get Lucky," their summer smash from last year. It is unclear, however, whether the two were in fact Daft Punk members Thomas Bangalter and Guy-Manuel de Homem-Christo or if Arcade Fire were simply punking the Coachella audience.

After all, during the band's weekend one set, Butler criticized the overabundance of EDM acts by dedicating a song "for all the bands at this festival playing real instruments." Perhaps he was pulling one over on the crowd.

So far, neither reps for Daft Punk or Arcade Fire have confirmed if the appearance was legit.

Towards the end of the set, Beck appeared to sing a cover of Prince's "Controversy" with the band. The artist wore the same pope costume that Breaking Bad actor Aaron Paul donned the previous weekend.