The Coachella music festival always causes a buzz, but Sunday’s performances stood out in a different way: rapper Tupac Shakur, who has been dead for 15 years, performed on stage with Snoop Dogg and Dr. Dre.

How is this possible? Welcome to the digital age. The visual-effects house Digital Domain Media Group Inc., who was responsible for creating the virtual versions of Brad Pitt for 2008’s “The Curious Case of Benjamin Button,” created a 2-D hologram of the late rapper, who’s ghostly image was reflected onto the stage.

It’s now rumored that the hologram image of Tupac could go “on tour” with Dr. Dre and Snoop Dogg, though it has not been confirmed.

What does this mean for the future of music and performance?

Would paying to see a hologram version of Tupac be worth the money?

Are you excited about this new use of technology, or is bringing the dead back to life just plain creepy? What else would you like to see made with these hologram images?