Watch: Taylor Swift and Ellie Goulding Wear Matching Hot Pants, Sing Together in Los Angeles

Taylor Swift has been bringing a lot of her famous friends on stage for the Los Angeles dates of her Red Tour all week.

Her latest guest performer was none other than the equally adorable Ellie Goulding, who delivered a duet of her hit “Anything Could Happen” with Swift at the Staple Center on Friday night.

As if the duet wasn’t enough, the ladies performed in matching hot pants (a trend Swift has been rocking for quite some time).

So.. Anything could happen at one of our LA shows. @elliegoulding showed up to sing ‘anything could happen’! 15,000 person dance party,” Swift wrote on Twitter after the show.

The Red Tour’s 4-day love affair with Los Angeles concludes on Saturday.