Sure, Madonna has gotten all the headlines, but she isn't even appearing on Glee. Not so though for Olivia Newton-John! The '80s pop queen is making an appearance on Glee's May 4th episode where she'll get to partake in a very special performance of her hit song, "Physical," with some help from Sue Sylvester!

Says Olivia: "It was like going back in time. What is it, 30 years? It was spooky. So much fun. I've never laughed so much." Newton-John will also reportedly make an appearance in the Glee season finale, so fans should expect to get "physical" with her plenty of times before the season is out!

Source: The Miami Herald