However, instead the Shake It Off singer brought out Paramore’s Hayley Williams - whose band are supporting Taylor during this leg of the tour - for their Speak Now vault track Castles Crumbling.
Introducing her friend to the stage, Swift told the audience: “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.
“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.”
The surprise songs segment also saw The Tortured Poets Department track thanK you aIMee for the first time, mashing it up with Mean.
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.”
