A seemingly impossible occurrence finally took place this past weekend at Coachella: the surviving members of N.W.A. -- Ice Cube, MC Ren, DJ Yella and even Dr. Dre -- performed together for the first time in almost 30 years. The festival's first weekend had seen a partial reunion without Dre, but this past the stars finally aligned: Ice Cube stopped mid-performance to ask, "Is there a doctor in the house?" The crowd predictably went nuts as Dr. Dre strode out onto the stage dressed head-to-toe in black. The quartet went on to perform "Still D.R.E." and "California Love." Ice Cube wasn't done with the surprises for the night, however. To close out his set, he brought out Kendrick Lamar to perform "Alright" from To Pimp a Butterfly. Check out the highlights below.