Thanks to the magic of technology, the most talked-about performance at this year's Coachella festival came from a man who died more than 15 years ago. Last night (April 15), as Snoop Dogg closed out the three-day Southern California event, slain hip-hop icon Tupac Shakur appeared in hologram form, busting a solo "Hail Mary" and teaming with Snoop on "2 of Amerikaz Most Wanted."

"What the f--- is up, Coachella?!" asked the eerily realistic 'Pac, who arrived shirtless, rocking a crucifix chain, sagging jeans and work boots.

Pac's "resurrection" has been met with mixed responses, as some critics find the beyond-the-grave theatrics creepy and exploitative. Of course, those same charges have dogged the rapper -- or perhaps more correctly, his estate -- for years, as he's released countless posthumous albums, leading some conspiracy theorists to believe he faked his own death.

Also on hand for Snoop's star-studded set were such living, breathing rhymers as Dr. Dre, Eminem, Wiz Khalifa, 50 Cent and hotly tipped newcomer Kendrick Lamar.

Watch Tupac Perform as a Hologram at Coachella

Watch 'The Life and Career of Tupac'