The Michael Jackson performance on the Billboard Music Awards was the result of nearly half a year of planning, choreography and filming, not to mention the development of new technology.

A hologram of Michael Jackson singing his "new" single "Slave to the Rhythm" was unveiled at the 2014 Billboard Music Awards. The hazy hologram of Tupac Shakur performing at Coachella 2012 blew ...

A hologram of Michael Jackson made its debut Sunday at the Billboard Music Awards, mirroring the late King of Pop's signature slick dance moves as some members of the audience became emotional.

A hologram of Michael Jackson made its debut Sunday at the Billboard Music Awards, mirroring the late King of Pop’s signature slick dance moves as some members of the audience became emotional.

Sunday night's Billboard Music Awards 2014 had a surprise performer: a hologram version of the late "King of Pop" Michael Jackson.