Chappell Roan sang at Elton John's Oscars AIDS benefit, singing 'Your Song' and dueting on 'Don't Let the Sun Go Down on Me' and 'Pink Pony Club.'

Pop icon Chappell Roan performed alongside legendary singer Elton John during his Elton John AIDS Foundation Academy Award viewing party on Sunday. John, 77, and Roan, 27, sang John's song "Don't Let the Sun Go Down on Me,

What better place to transform to a Pink Pony Club than Elton John's annual Oscars viewing party? On Sunday night, Chappell Roan took the stage for a full concert that included a historic duet with John of his classic "Don't Let the Sun Go Down on Me" and her hit "Pink Pony Club.