Even if you haven’t seen Grease, you’ve likely heard its iconic songs. Released in 1978, the film captured hearts with tough Danny Zuko, played by John Travolta, falling for the sweet Australian, Sandy Olsson.

Their summer romance seemed over when Sandy left for Australia—until she showed up at Danny’s school, sparking the unforgettable love story filled with catchy tunes and dance moves.

To celebrate Grease’s 40th anniversary, Travolta appeared on The Tonight Show with Jimmy Fallon. He shared how he came up with the famous “four corners” dance step for “You’re the One That I Want.”

With the crowd cheering and live Grease music playing, Travolta wowed fans by flawlessly performing the iconic moves once again.