Get your headbands and legwarmers ready—Olivia Newton-John is set to appear on Glee and she’ll be singing “Physical” with Cheerios coach Sue Sylvester! Tracksuit-tastic! Jane Lynch, who plays Sue, said, “I’m so excited I can’t see straight! [Olivia] provided the soundtrack for my tortured adolescence. Her charitable work and commitment to making others’ lives and the life of the planet better is so inspiring.” Glee creator Ryan Murphy added, “Olivia loves the show and is a great idol of mine.” ONJ will guest star on the series when it returns in the late spring in the US.