Gronk Rocks Onstage With McCartney At Fenway [VIDEO]

Last night at Fenway Park in Boston, Paul McCartney tore into Helter Skelter with a little help from his friends, including the ever-lovable Gronk!

Watch New England Patriots tight end Rob Gronkowski do his best air guitar work to the Beatles classic!  McCartney even shared the mic briefly with Gronk at the end!  Hey, those were some pretty impressive dance moves!

Also on stage with McCartney's fine band was Grateful Dead guitarist Bob Weir, but it looked like he may actually have been playing his guitar.