Taylor Swift surprised fans at her London Eras Tour by performing 'London Boy,' a song about her ex-boyfriend Joe Alwyn, for the first time on this tour. The couple dated from 2016 to 2023, and Alwyn co-wrote several tracks on Swift's albums under the pseudonym William Bowery. The performance marks Swift's first public reference to Alwyn since their breakup, which has been a topic of significant public and media interest. Alwyn, who has faced fan backlash post-breakup, recently spoke out about the emotional toll and public scrutiny following their split, describing their relationship as 'long, loving, and fully committed.' While Swift performed in London, Alwyn was busy filming the Shakespearean drama 'Hamnet' in Hertfordshire. The actor has emphasized the challenges of navigating their breakup while maintaining a professional and personal life under public scrutiny.