WATCH: NFL Star Rob Gronkowski Shreds With Macca

  It appears Rob Gronkowski's balls aren't deflated! Livin' The Dream: Gronk 'Shreds' Air Guitar While Onstage With Paul McCartney At Fenway Rob Gronkowski really lives his life. Plays for a winning franchise, parties hard, is surrounded by beautiful women. And now you can add "Jammed with one of The Beatles" to the impressive list…