Did Eric Church just throw some shade at Garth Brooks?

Eric Church appears to have taken a dig at Garth Brooks while he performed "Are You Sure Hank Done it This Way?" in Washington, D.C. over the weekend. 

At the end of the second chorus, Eric sang, "I know Garth didn't do it this way."

Eric was up for Entertainer of the Year at the CMA Awards last week, but Garth won the big prize. Carrie Underwood and fans were also upset after the show talked about women finally getting their due- it seemed Carrie was a lock but didn't take home the prize either.