Concertgoers to the Coachella festival last weekend partied like it was 1994 at the close of weekend one. That's because an unexpected performer showed up to perform a set with Snoop Dogg and Dr. Dre. Concert organizers reportedly used the same movie magic as the Star Wars films to create a holographic version of Tupac Shakur, who rose from the stage at the beginning of the performance. The shocked audience, which included several celebrities, naturally lost their minds, seeing as the rapper has been dead for almost 16 years. The image went on to rap favorites like "2 of Amerikaz Most Wanted," "Come with Me" and "Hail Mary," all the while seeming to interact with Snoop, Dre and the audience. The reaction from the Twitterverse was powerful, with tags like#nowthat2pacsback and #HolographicTupac trending. Katy Perry, who was in the audience, was blown away, tweeting, "I think I might have cried when I saw Tupac. #Coachella" The set also included a memorial to the late Nate Dogg, who died last year. No word on whether there are plans to raise more deceased artists from the dead holographically - but it would be pretty cool.