Carrie Underwood playing drums wasn’t totally surprising, but we had no idea that Teen Wolf star Dylan O’Brien plays too. You can hear him on the track “Snow on the Beach” from Taylor Swift’s latest album, Midnights.

Update October 26, 2022: Taylor Swift herself added some more info during her latest appearance on The Tonight Show with Jimmy Fallon. She said that “Dylan was just hanging out, drinking wine with us and listening to us. He wasn’t serious. And so we were just sort of like, ‘Oh, we haven’t recorded the drums for this one yet…’ And he just played the drums on the song. Sometimes it just happens like that.”