Elvis performed with Celine Dion thanks to rotoscoping, a body double

Was last week’s Idol Gives Back duet between Celine Dion and long-dead Elvis Presley a hologram? A body double? CGI? Actually, it was a combination of technologies, although not, as some people speculated, a hologram.

First, “Dion spent hours on the stage singing her part of the song several times without an audience or anyone next to her, looking to her side on cue,” Good Morning America reports.

She then performed “with a Presley body double who lip-synced Presley’s song and matched his moves from his 1968 performance.” Those were digitally merged with Elvis’ performance “through editing and a technique called rotoscoping, which traced Presley from the original footage by cutting him out.”

Disney’s Joe Husung tells GMA, “Rotoscoping allows you to take one image from a pre-existing piece of video and puts him a whole new environment — completely new use of that same piece of video.”

Elvis on ‘Idol:’ How It Was Done [Good Morning America]

Review: Married at First Sight

Marriage At First Sight

In an era of Tinder and Grindr, instant acceptance or dismissal of a potential partner, or instant sex with another body, Married at First Sight offers the thrill of watching strangers deal with the very basics of relationships.

Beyond the headline-grabbing premise, the series has turned out to be a stripped-down, authentic exploration of something very interesting. Read the full review.

about the writer

Andy Dehnart is a journalist who has covered reality television for more than 15 years and created reality blurred in 2000. A member of the Television Critics Association, his writing and criticism about television, culture, and media has appeared on NPR and in Playboy, Buzzfeed, and many other publications. Andy, 36, also directs the journalism program at Stetson University in Florida, where he teaches creative nonfiction and journalism. He has an M.F.A. in nonfiction writing and literature from Bennington College. More about reality blurred and Andy.