Comparing the Casts: 1978's Grease vs. 2016's Grease: Live
JULIANNE HOUGH VS. OLIVIA NEWTON-JOHN
While no one can top Newton-John's rendition of "Hopelessly Devoted to You," Hough was pitch-perfect as both the Sandra Dee Sandy and post-makeover Sandy. Not to mention, she made the character her own with those killer dance moves.
AARON TVEIT VS. JOHN TRAVOLTA
This comparison just may be the toughest: a Broadway star and an icon. While stepping into Travolta's shoes was no doubt daunting, Tveit, his stage-ready voice and his shorts-ready physique were more than up to the challenge.
CARLOS PENAVEGA VS. JEFF CONAWAY
Fresh off Dancing with the Stars, PenaVega's footwork was on point for his turn as Kenickie. The only problem? Knowing how lovable he is IRL made it hard for him to match Conaway's original bad-assery.
VANESSA HUDGENS VS. STOCKARD CHANNING
Hudgens – who performed in Grease: Live just hours after her father's death – was a standout for her powerful take on Rydell's resident tough girl. But as incredible as Hudgens was (and she really was), Channing's portrayal is nothing short of iconic.
CARLY RAE JEPSEN VS. DIDI CONN
Jepsen was great as beauty school dropout Frenchy, especially since she got to show off her vocal chops in the show's one original song "All I Need Is an Angel." But part of what made her so great was her spot-on imitation of Conn's Frenchy, so credit where credit is due.
JORDAN FISHER VS. BARRY PEARL
This up and comer was a total charmer with his killer version of "Those Magic Changes." Seriously, he sang and played the guitar. Pearl was great as Doody in the original – but he didn't was lacking those musical skills.
KEKE PALMER VS. DINAH MANOFF
Palmer – and that impressive costume change – got a solo in Grease: Live, which Manoff didn't get in the 1978 movie (just on the Broadway stage). So props to Palmer for bringing another dimension to Marty aside from her taste for older men.
People's new Grease special edition, filled with on-set secrets and exclusive cast interviews, including John Travolta and Olivia Newton-John, is available now on Amazon and wherever magazines are sold.