The knockout performance in question happened at the Tight Ends and Friends concert at Music City's Brooklyn Bowl, with Swift getting the crowd hyped up as she took the stage in a black dress and matching heeled boots. As she strummed her guitar, Brown danced along on stage and added extra percussion by shaking a stick of bells.

On June 24, Swift gave a surprise performance at her boyfriend's Tight Ends & Friends concert at the Brooklyn Bowl Nashville. While she was on stage, fans took videos of her playing her guitar and singing her hit song "Shake It Off." For the performance, Swift donned a black mini dress and a pair of matching boots.