Watch Taylor Swift Sing “Royals” With Lorde In Washington, D.C.

On her massive American stadium tour, Taylor Swift seems to be resurrecting the gimmick where she sings a song with a different guest at every show. Over the weekend, she brought the Weeknd to the stage in New York. And last night, when she was playing Washington, D.C.’s Nationals Park, she introduced her pop superfriend Lorde. The two of them sang “Royals” together, since stadiums are no place for guest-artist deep cuts. And while Swift is a perfectly composed stadium-pop machine at this point, Lorde still looks crazy excited that she gets to sing her song in front of all these thousands of kids. She’s still a performer, but she looks absolutely human in a really endearing way. Below, watch a fan-made video of the two singing together and check out a few Tweets from Lorde and Swift about the occasion.

Should we talk about what’s going on with Taylor’s shorts? Because I don’t understand what’s going on with Taylor’s shorts.