WATCH 'Grease Live!' Stream Online, Sunday January 31: Julianne Hough, Vanessa Hudgens & More!

The highly-anticipated musical Grease: Live! will air this Sunday (January 31) on FOX at 7 p.m. EST. Get more details below!

Although Grease first premiered on Broadway back in 1972, the 1978 film adoptation (starring John Travolta as Danny Zuko and Olivia Newton-John as Sandy) really gained worldwide attention. With a whopping $400 million global gross, it's still considered the highest grossing  musical of all time.

The stellar "new age" cast of the beloved Rydell High includes Aaron Tveit, Julianne Hough, Vanessa Hudgens as Rizzo, Carly Rae Jepsen as Frenchy, Keke Palmer as Marty, and Carlos PenaVega as the legendary Kenickie. But don't forget Vince Fontaine (Mario Lopez), Coach Calhoun (Wendell Pierce), Principal McGee (Ana Gasteyer), Johnny Casino (Joe Jonas), and Mrs. Murdock (Eve Plumb). Other big-name appearances include Boyz II Men, Jessie J., and original cast member Didi Conn.

The live show is split between two stages on the Warner Bros. lot in Burbank (California) and should run approximately three hours. Twitter fans are already enjoying the action!

@elvisduran: "Wow. #GreaseLive is fantastic so far. Loving it!"

@TheBwayHipster: "Let's be honest in this day and age if we had live singing announcements in our schools we would be wide awake #GreaseLive."

@JuliaMurney: "Yes, @AnaGasteyer. Yes, girl humming in neck brace. I love you both. #GreasLive#thankyoureginald."

@TVAfterDark: "Guys... Rydell is integrated. I am so happy. #GreaseLive."

@AdelaineMorin: "#GreaseLive IS THE BEST THING THATS EVER HAPPENED TO THIS WORLD."

@JuliaMurney: "They hit the shoo da bop bops & I smiled so hard. They're having fun, I'm having fun. Oh! And there's the audience! #GreaseLive."

@LouisPeitzman: "My favorite part of a Broadway show is when Mario Lopez steps out and delivers commentary. #GreaseLive."

@DanMannarino: "So #GreaseLive is actually good. Im not ashamed to be watching it."

@AndiDorfman: "Am I the only one just now realizing all the sexual innuendos in Grease? #GreaseLive."

@DiscoverCotton: "Is there anything more classic than a white t-shirt and jeans? #GreaseLive @GoGrease."

Watch "Grease! Live" for free here, or visit GossipCop for another viewing option! Enjoy!