Ed Sheeran and our Marvin couldn't resist a Pharrell hat joke backstage at the Ball last year This image appears in the gallery:32 MOST MEMORABLE #CapitalSTB Backstage Moments 19. Ed Sheeran and our Marvin couldn't resist a Pharrell hat joke backstage at the Ball last year Picture: Gobinder Jhutta 32 images See the full gallery: 32 MOST MEMORABLE #CapitalSTB Backstage Moments