Taylor Swift Debuts ‘thanK you aIMee’ Live, Sings ‘Castles Crumbling’ With Hayley Williams in London

Swift performed a "thanK you aIMee" and "Mean" mashup before the Paramore singer joined her for Saturday night's surprise songs at Wembley Stadium.

During her acoustic set at Wembley Stadium on Saturday night (June 22), Taylor Swift declared London a "special" place for The Eras Tour. At the second of her three shows this weekend, she surprised the crowd with a song she had never performed live before and brought out Hayley Williams for a duet.

“We get to play Wembley Stadium eight times this summer. When I’m thinking about that, you think about just being grateful and being thankful,” Swift expressed to the audience, showing her appreciation. She'll be returning to Wembley for five more shows later this summer from August 15-20.

However, Swift also shared another perspective. “On the other hand, it really makes me think about how every time somebody talks s— it just makes me work even harder,” she said before launching into the first of the night’s two surprise songs. “I’ve never played this one before. Wish me luck,” she said, and then strummed her acoustic guitar to start “thanK you aIMee,” from The Tortured Poets Department: The Anthology.

Swift continued, “I don’t think you’ve changed much/ And so I changed your name and any real defining clues/ And one day, your kid comes home singin’/ A song that only us two is gonna know is about you,” in a later verse. 

She performed “thanK you aIMee” in a mashup with Speak Now’s “Mean,” another track about overcoming critics. Swift humorously improvised, “Someday I’ll be singing this song at Wembley,” to the tune of “Mean.”

To make the moment even more special, she invited Hayley Williams (who had opened the show with Paramore earlier) to join her on stage for a live duet of “Castles Crumbling,” their collaboration from the *Speak Now (Taylor’s Version)* vault. Swift and Williams sat together at the piano, harmonizing beautifully. 

Swift reminisced about the last time they performed live together: on The Speak Now Tour in 2011, when Williams joined her on stage in Nashville to perform Paramore’s “That’s What You Get.”