Taylor Swift, Ed Sheeran Perform With Cara Delevingne!
She accompanied the clip with the comment: "Me, Ed, Cara. Singing songs in the US ambassador's house. What is life."
The footage shows the trio standing at the bottom of a staircase in the house, with Ed also playing the guitar as Cara joins Taylor on vocals.
Swift - who played her final night at London's O2 Arena as part of her Red world tour last night - also uploaded a pic of herself and Delevingne standing alongside each other, doing their best impression of the first president of the United States, George Washington.
The 23-year old singer wrote alongside the image: "Just trying to be like George Washington. @caradelevingne."
As well as their impromptu performance, Taylor and Cara also have another thing in common having both been linked to One Direction heartthrob, Harry Styles in the past.
Everything Has Changed (Ft. Ed Sheeran)
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