Chappell Roan delivered a phenomenal headlining set at Elton John's annual Oscars after-party, where the pop icons teamed up onstage.

Chappell Roan made Elton John an honorary member of the “Pink Pony Club” Sunday night, placing a fringe-laden, pink cowboy hat upon his head as she dueted with the legend on her signature song as well as one of his own classics at his annual Oscar night party in West Hollywood.