Taylor Swift introduced her special guest at the first of her two sold-out shows at Gillette Stadium in Massachusetts on Friday night with the special request, “They’ve never seen 60,000 people dance!”

In matching sequined jackets Walk The Moon and Taylor sing the huge hit Shut Up And Dance at Gillette Stadium in Massachusetts. Check out the fan video below.

The surprise performances have become a regular fan favorite on Swift’s tours. So far this tour we’ve seen Lorde’s “Royals” and Jason Derulo’s “Want You to Want Me” in D.C., Nick Jonas’s “Jealous” in New Jersey, and Sam Hunt’s “Take Your Time” in Chicago. Her “Bad Blood” ladies and other famous faces have also strutted down her on-stage runway at various stops throughout the tour.