When “Grease Live” finally airs on Fox, you won’t be hearing Frankie Valli singing the show’s main theme song. Instead, Jessie J covers the classic tune, “Grease,” and in case you missed it, the network just released the full version of the song, including a video with some behind the scenes footage from the production.

To her credit, neither Jessie or the band take it to far out from the original, which was written by Barry Gibb of BeeGees fame, FYI.

While the TV presentation will stick more closely to the Broadway musical, the song itself was written specifically for the movie version starring John Travolta and Olivia Newton John.

Grease Live,” starring Julianne Hough, Vanessa Hudgens, Aaron Tveit and Carly Rae Jepsen, airs Sunday at 7 pm.


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