Taylor Swift Brings Out Paramore’s Hayley Williams for Surprise Duet at 2nd Eras Tour Show in London

Swift also performed “thanK you aIMee” for the first time before singing “Castles Crumbling” with Williams

Taylor Swift is continuing to impress Swifties with her surprise songs!

On Saturday, June 22, the 14-time Grammy winner stunned the audience at the second Eras Tour show in London by bringing out Paramore’s Hayley Williams to perform their Speak Now vault track “Castles Crumbling.”

In videos shared by fans inside Wembley Stadium, Swift, 34, can be seen seated at a piano with her longtime friend Williams, 35, as they perform the ballad acoustically as part of the surprise songs segment of the tour.

They have been friends since early in their careers and previously performed together in London in 2011 during the Speak Now Tour.

Before Williams graced the stage, Swift teased a special guest, keeping the fans on the edge of their seats.

“In the process of re-recording, I was really trying to reach out to artists that I’m such a fan of, or in the case of one of the albums, specifically on Speak Now, I reached out to artists who have been so influential in my music, in my writing, who I looked up to,” Swift teased.

Swift continued: “I asked an artist who I was such a huge fan of to be on one of the songs, and she said yes. London, we are so lucky because when I asked Hayley Williams to come to this show, she said yes.”

At Saturday’s show, Swift also performed The Tortured Poets Department track “thanK you aIMee” for the first time, mashing it up with “Mean” from Speak Now. During “Mean,” Swift changed the lyrics from “Someday, I’ll be livin’ in a big, ole city” to “Someday, I’ll be singing this song in Wembley.”