Fox has called Carly Rae Jepsen, definitely.



The pop singer has been cast in the network's upcoming "Grease: Live!" as Frenchy, one of the Pink Ladies at Rydell High School. She befriends Sandy (Julianne Hough), the new girl in school and the love interest of greaser gang leader Danny (Aaron Tveit).



Joining Jepsen in pink will be "You're the Worst" actress Kether Donohue as Jan. David Del Rio is also on board as T-Bird. They join the already-cast Vanessa Hudgens as Rizzo, Carlos PenaVega as Kenickie and Keke Palmer as Marty.



Fox's live performance of the classic tale — made into a 1971 Broadway musical and the 1978 movie starring John Travolta and Olivia Newton-John — follows in the mold of other live shows, like NBC's "Sound of Music" and "Peter Pan."



"Grease: LIve!" airs Sunday, Jan. 31 at 7 p.m. ET, and kicks off with a new version of "Grease (Is the Word)" by Jessie J.



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