STAGE TUBE: Watch the Camera Magic Behind GREASE: LIVE!

FOX's GREASE: LIVE was an undeniable hit Sunday night, earning rave reviews, 12.2 million viewers and a 4.3 rating in the all-important A18-49 demographic. Much of the success had to do not just with the stars in front of the camera, but the many people behind the scenes. Below, watch a video from Associate director Carrie Havel, showing you an inside look at "Greased Lightnin" from a split screen perspective.

Havel writes: "A lot of people have asked what it means to be the Associate Director on a show like Grease Live. Here's a peek behind the curtain. Every shot in the show was scripted by our director Alex Rudzinski. My job was to execute that plan. You hear me calling shot numbers and camera moves carefully coordinated with the music. #GreaseLive"

The live event starred Julianne Hough ("Safe Haven," "Rock of Ages") as the angelic "Sandy" - Rydell High's most talked-about newcomer - and Aaron Tveit ("Graceland," "Les Miserables") as bad boy "Danny Zuko." Also tapped to star are Vanessa Hudgens (Broadway's "Gigi," "Spring Breakers") as iconic bad girl "Rizzo"; Keke Palmer (SCREAM QUEENS, "Masters of Sex") as sassy Pink Lady "Marty Maraschino"; Carlos PenaVega ("Big Time Rush") as "Kenickie," Danny's tough-guy sidekick; multi-Platinum Grammy® Award-nominated singer and songwriter Carly Rae Jepsen as Pink Lady and beauty school dropout "Frenchy"; Kether Donohue ("You're The Worst") as Pink Lady "Jan";David Del Rio ("Spare Parts," "The Troop") as T-Bird "Putzie; Jordan Fisher as "Doody"; and Andrew Call as "Sonny."