Olivia Newton-John was a guest judge on Monday night's Dancing With the Stars, as contestants recreated moves from movies, but the actress' best moment came after the show.
The Grease star's 29-year-old daughter, Chloe Lattanzi, accompanied her on the red carpet and complimented her mom's judging skills.
"You were, like, professional," Chloe gushed.
Internet personality Hayes Grier, 15, performed to "You're the One That I Want" from Newton-John's classic flick, Grease, despite having never seen the 1978 musical. Still, the young star earned high praise from Newton-John, who compared him to her co-star, John Travolta, calling him "baby John."
Lattanzi told ET she first saw the movie when she was six and used it as a comfort blanket before bed.
"When she would go away, I would put the tape on replay at night when I would go to sleep," Lattanzi shared.
"Isn't that sweet?" Newton-John said. "I feel so bad."