Fox is giving fans a little taste of the "Grease: Live" cast singing the most iconic songs from the musical event, set to premiere at the end of January.

The show has posted four short snippets to its Vine account over the past week featuring the songs "Hopelessly Devoted to You," "Summer Nights," "You're the One That I Want" and "We Go Together."

Julianne Hough, who will play Sandy, sings solo on "Hopelessly Devoted" and duets with her co-star Aaron Tveit, playing Danny, on "Summer Nights" and "You're the One That I Want." The whole cast joins in on "We Go Together."

"Grease: Live" is heading into its final weeks of rehearsals before they perform before a live studio audience on Sunday, Jan. 31 on Fox. The decision to have a live audience differs from NBC's choice to forego an studio audience for their live musical events including "The Sound of Music," "Peter Pan" and "The Wiz."

"They'll be incorporated into the design of the show," producer Marc Platt told USA Today about the live audience. They will even appear in some scenes. "You'll feel their presence. I think the audience gives something, especially in a musical comedy that's about exuberance and fun."

Leading the Pink Ladies is Vanessa Hudgens as Rizzo alongside Keke Palmer (Marty), Carly Rae Jepsen (Frenchy) and Kether Donohue (Jan). Carlos PenaVega plays Kenickie and is joined by David Del Rio (Putzie), Andrew Call (Sonny) and Jordan Fisher (Doody).

Yvette Gonzalez-Nacer and Mario Lopez round out the cast as Cha Cha and Vince Fontaine. "Grease: Live" debuts on Sunday, Jan. 31 at 7 p.m. on Fox.