Date: 4/15/2012

16 years after his murder, 2Pac is still making history on stage. Well, sort of. At last year's Coachella, headliners Dr. Dre and Snoop Dogg unveiled a shockingly realistic 'Pac hologram, which performed pitch-perfect versions of "Hail Mary" and "2 of Amerikaz Most Wanted."

Holo-Pac even introduced himself by shouting, "What up, Coachella?" It was amazing and bizarre all at once, stunning the crowd and possibly starting a new trend: Rock the Bells this year will be headlined by holograms of two other late legends, Eazy-E and Ol' Dirty Bastard.