I'm not so much into the whole 2Pac performing "live" as much as I am into "how did they do it"?

How does "holograms" work? Acutally, the 2PAC performance in California last weekend really wasn't a hologram. That technology has not evolved yet! Which makes this all the more exciting! What you saw in the 2Pac performance was more of a 2D effect (made to look 3D). Here is how they did it: LINK

Watch Tupac Shakur’s Performance at Coachella Festival 2012