From Elvis to MJ: Hollywood's hologram takeover

Sure, Michael Jackson and Tupac Shakur got the hologram treatment, but they weren't the only ones.

A few other stars, both living and dead, have also been made into holograms. Stars like:

1) Janelle Monae

In April 2014, the very much alive and currently hot artist Janelle Monae showed up as a hologram for a duet with fellow artist M.I.A. The pair were performing in New York City and Los Angeles, respectively.

2) Mariah Carey

As talented as she is, Mariah Carey can't be everywhere at once. As part of a T-Mobile phone campaign in 2011, the superstar singer appeared across Eastern Europe singing Christmas music. Fans went wild.

3) Elvis

Celine Dion sang with the late Elvis Presley on "American Idol" in 2007. The show used "rotoscoping" in which video of Elvis was added to video of Dion to give the illusion the two were performing together.