We knew Rob Gronkowski could kind of rap-sing (thank you for giving us that, Dunkin Donuts) but did you also know he's a talented air guitarist? He proved it during Paul McCartney's show at Fenway Park in Boston on Sunday night. On hand to provide actual guitar skills alongside McCartney was Bob Weir of Grateful Dead.

According to Rolling Stone, Bob Weir was still in Boston after a Dead and Company show at Fenway Park on Saturday night which made it possible for the epic rock pair to perform on stage together for the first time Sunday night. I'm not sure how Gronk got his invite but I'm pretty sure he's always in Boston/Foxboro waiting for opportunities to make large crowds scream and hyperventilate.