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Black Eyed Peas with David Guetta

INDIO, CA - APRIL 12: (L-R) Recording artists will.i.am, Taboo of The Black Eyed Peas, DJ David Guetta and apl.de.ap of The Black Eyed Peas perform onstage during day 3 of the 2015 Coachella Valley Music & Arts Festival (Weekend 1) at the Empire Polo Club on April 12, 2015 in Indio, California.

Coachella Staple: The Surprise Guest

Yahoo MusicApril 16, 2013

From headliner homies to totally unexpected treats, Coachella's biggest newsmakers in recent years have always been the suprise guests! Nowadays, it's almost unheard of for a headliner to play without another star joining for a tune or two (ahem, Chili Peppers). Check out some of Coachella's most exciting unannounced appearances, from early crashers to the latest secret superstars. - By Tiffany Lee