Taylor Swift and Paramore’s Hayley Williams introduced it again to the Communicate Now period through the 14-time Grammy winner’s second Eras Tour live performance in London.

Swift, 34, enlisted Williams, 35, for an acoustic rendition of their “Castles Crumbling (Taylor’s Model)” duet on Saturday, June 22, at Wembley Stadium. Whereas Swift opted for her blue, high-low “shock music” costume, Williams’ look paid tribute to the origins of their friendship.

Williams, whose band Paramore is the European opening act for Swift’s Eras Tour, rocked a lilac halter costume. The frock paid homage to Swift, who notably wore a purple minidress throughout her 2011 Communicate Now world tour. Swift and Williams, who co-wrote “Castles Crumbling” as a vault monitor for the 2010 LP, even carried out a duet on the street on the time.

“You had me come down a grand staircase,” Williams recalled on Saturday of their final touring duet. “I barely bear in mind it!”

After the 2 girls completed taking part in “Castles Crumbling” on Saturday, Swift seen handwritten ink down Williams’ shoulder.

“It is a Communicate Now tour factor,” Swift quipped with fun. “I at all times used to write down Sharpie all down my arm.”

On Saturday, Williams wrote “I bear in mind this second” in cursive throughout her bicep, a nod to Swift’s “Lengthy Reside.” The monitor briefly appeared on Swift’s Eras Tour setlist following the July 2023 launch of Communicate Now (Taylor’s Model) however has since been lower to make room for a Tortured Poets Division part after the album’s April debut.

A number of hours after the live performance, Williams shared an Instagram Story pic of Swift from the 2011 tour when she wore the OG purple costume and wrote “all of us be taught to make errors and run from them” down her arm.

Throughout Swift’s Communicate Now tour, she usually wrote lyrics on her arm from different musicians as a substitute of her personal prose, selecting traces from artists together with pal Selena Gomez, Andy Grammer, Alanis Morrissette and Religion Hill.

“I’ve written lyrics on my arm for the final tour, and it was actually a enjoyable factor to do as a result of it may very well be a music I’d by no means heard earlier than,” Swift advised Style of Nation in October 2012. “It may very well be a music that anyone simply mentioned, ‘Oh right here, I actually like this one line on this one music,’ you already know, within the dressing room earlier than I’d go on, and I’d simply write it on my arm!”

Swift revisited the pattern in her “I Can See You” music video, which dropped in July 2023 alongside her re-recorded Communicate Now LP, writing the “Lengthy Reside” lyrics on her arm.