Kevin Mazur/Getty Taylor Swift and Ed Sheeran's friendship is endgame ... and a sweet video shared to social media shows Swift tussling Sheeran's hair while they sipped cocktails and chatted ...

recalling the first time he came across Ed Sheeran. "I wore the jeans and hoodie and I had long ginger hair. My mates said they'd found my alter ego, and asked me if I played guitar and sang.