GREASE: LIVE: (L-R): Keke Palmer, Kether Donohue, Julianne Hough, Andrew Call, Carly Rae Jespen, Carlos PenaVega Aaron Tveit, David Del Rio, Jordan Fisher and Vanessa Hudgens in GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed) on FOX. Cr: Tommy Garcia/FOX
GREASE: LIVE: (L-R): Carly Rae Jepsen as Frenchy in GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed) on FOX. Cr: Tommy Garcia/FOX
GREASE: LIVE: Carly Rae Jepsen rehearses for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. Cr: Kevin Estrada/FOX
GREASE: LIVE: Carly Rae Jepsen rehearses for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. © 2016 Fox Broadcasting CO. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R) Boyz II Men and Cast rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. © 2016 Fox Broadcasting CO. Cr: Kevin Estrada/FOX
GREASE: LIVE: Behind the scenes during GREASE: LIVE on Sunday, Jan. 31, 2016 on FOX. © 2016 Fox Broadcasting CO. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R) Julianne Hough and Aaron Tveit rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. © 2016 Fox Broadcasting CO. Cr: Kevin Estrada/FOX
GREASE: LIVE: Behind the scenes during GREASE: LIVE on Sunday, Jan. 31, 2016 on FOX. © 2016 Fox Broadcasting CO. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R) Aaron Tveit as ‘Danny Zuko and Julianne Hough as ‘Sandy’ rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. (Photo by Kevin Estrada/FOX via Getty Images)
GREASE: LIVE: Vanessa Hudgens and the cast of GREASE: LIVE rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R) Kether Donohue as ‘Jan’, Carly Rae Jepsen as ‘Frenchy’, Vanessa Hudgens as ‘Rizzo’ and Keke Palmer ‘Marty’ rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. (Photo by Kevin Estrada/FOX via Getty Images)
GREASE: LIVE: Behind the scenes during the finale of GREASE: LIVE! Sunday, Jan. 31, 2016 on FOX. © 2016 Fox Broadcasting CO. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R): Julianne Hough, Vanessa Hudgens, Carly Rae Jepsen rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R): Julianne Hough and Carly Rae Jepsen rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R): Keke Palmer, Carly Rae Jepsen, Kether Donohue, Vanessa Hudgens, Julianne Hough, Carlos PenaVega, Aaron Tveit, David Del Rio and Andrew Call rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed) on FOX. Cr: Jordin Althaus/FOX
GREASE: LIVE: (L-R): Julianne Hough, Carly Rae Jepsen, Kether Donohue, Keke Palmer and Vanessa Hudgens rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed) on FOX. Cr: Kevin Estrada/FOX
GREASE: LIVE: Carly Rae Jepsen rehearses for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed), on FOX. Cr: Kevin Estrada/FOX
GREASE: LIVE: (L-R): Carly Rae Jepsen and Julianne Hough rehearse for GREASE: LIVE airing LIVE Sunday, Jan. 31, 2016 (7:00-10:00 PM ET live/PT tape-delayed) on FOX. Cr: Kevin Estrada/FOX
This image released by Fox shows, from left, Carly Rae Jepsen, Julianne Hough, Vanessa Hudgens, Kether Donohue and Keke Palmer during a rehearsal for, “Grease:Live,” airing Sunday, Jan. 31, at 7p.m. (Kevin Estrada/FOX via AP)
This image released by Fox shows Carly Rae Jepsen, left, and Didi Conn during a rehearsal for “Grease: Live.” Conn, who played Frenchy in the 1978 John Travolta-led movie, will make a cameo appearance as a waitress at the Frosty Palace malt shop. Jepsen will play Frenchy in the new production airing Sunday, Jan. 31, on Fox. (Kevin Estrada/FOX via AP)
PHOTO MOVED IN ADVANCE AND NOT FOR USE – ONLINE OR IN PRINT – BEFORE JAN. 24, 2016. — Vanessa Hudgens, second from left, Carly Rae Jepsen, Julianne Hough and Keke Palmer, second from right, during a rehearsal for “Grease: Live,” in Burbank, Calif., Jan. 14, 2016. “Grease: Live,” which Fox will broadcast on Jan. 31, is working to be better than previous stage adaptations that have not been received well by viewers. (Emily Berl/The New York Times) ORG XMIT: XNYT37