On Sunday evening, Sir Elton John held his annual Oscars after-party, where woman of the hour Chappell Roan was his musical guest. And it’s been revealed that during the party, Sir Elton and Chappell performed an impromptu duet of her signature hit Pink Pony Club.

Roan performed an 11-song set at the party, ending with a cover of “Don’t Let The Sun Go Down On Me” and her own “Pink Pony Club,” both with John. You can watch the footage here.

Chappell Roan performed with Elton John at his 33rd Annual AIDS Foundation Academy Awards Viewing Party. The 27-year-old took the stage with the 'Rocket Man' singer to sing his 1974 hit, 'Don't Let the Sun Go Down on Me,