Taylor Swift surprised fans by performing a mashup of diss tracks aimed at Scooter Braun during her Eras Tour concert in Cardiff. The timing, coinciding with Braun's retirement announcement after managing top artists for 23 years, added spice to the performance. Swift's ongoing feud with Braun stems from his acquisition of her former record label and master recordings. Meanwhile, Braun's retirement, influenced by personal and professional considerations, garnered mixed reactions, with Swift's fans expressing joy over the news. Despite Braun's plans to stay involved with HYBE America, fans celebrated his departure from music management as a form of karma.