Taylor Swift and Hayley Williams Reunite for 'Castles Crumbling' at London Eras Tour

The longtime friends performed the duet live for the first time, celebrating their musical journey and friendship.

Overview

Swift debuted 'Thank You, Aimee' live, blending it with 'Mean' in a unique mashup.
Williams wore a lilac dress, a nod to Swift's 2011 Speak Now tour outfit.
Swift expressed deep admiration for Williams, calling her 'my longest music friend.'
Notable attendees included Tom Cruise, Hugh Grant, and Greta Gerwig.
Swift's Eras Tour will continue with more dates at Wembley Stadium in August.