Olivia Newton-John

Olivia Newton-John (September 26, 1948 - August 8, 2022) is an English-Australian singer, songwriter, actress, entrepreneur, and activist.

Grease
In this American musical romantic comedy, Sandy Olsson (played by Olivia Newton-John) is first barefoot while at a sleepover as she has just had her pedicure. Later in the musical number "We Go Together" Sandy barefeet is briefly shown when she jump on-screen before the students started to dance.