Coming to Fox January 31, 2016: Grease Live!

It looks like a lot of fun — but caution, parents, there is some material in the show (based on the original play as well as the film) that may not be appropriate for younger children, including references to a possible teen pregnancy, concerns about promiscuity, and (spoiler alert) a “happy” ending that has a “good girl” acting like a “bad girl” to keep a boy.

The stars include “High School Musical’s” Vanessa Hudgens, “Dance With the Stars'” Julianne Hough, and “Akeelah and the Bee’s” Keke Palmer — plus, Jeannie from the “Ellen” show.