"I'm Fred Flintstone!" he said. "I'm part of the water buffalo club. Yabba dabba doo!" Jason Kelce Wanted to Take His Shirt Off While Tailgating at Bills Game While many NFL fans applauded Kelce's ...

NFL/X (2) Jason Kelce is ready for some football — and Halloween! The Monday Night Countdown star, 36, donned a Fred Flintstone costume and joined members of the Bills Mafia for a tailgate ...

Jason Kelce is being welcomed into the Buffalo ... could be seen donning a Fred Flintstone costume and a bright blue furry Bills hat while taking Gatorade shots out of a bowling ball.

Just when you thought Jason Kelce, the former Philadelphia ... he’s back and he’s gone full Fred Flintstone. The Monday Night Countdown host rolled into a Bills tailgate before tonight ...

Jason Kelce is turning ESPN’s “Monday ... On Oct. 14, he embraced the Buffalo Bills Mafia and wore a Fred Flintstone costume over a blue suit with a matching fuzzy hat with horns.

As for Hollins’ Fred Flintstone getup, he is in good company. Former Philadelphia Eagles player Jason Kelce sported a similar orange-spotted caveman outfit when he mingled with Bills Mafia ...

Jason Kelce is ready for some football — and Halloween! The Monday Night Countdown star, 36, donned a Fred Flintstone costume and joined members of the Bills Mafia for a tailgate before the team ...