Watch: Blake Shelton says 'there'll never be another Toby Keith' on NBC tribute special
"There'll never be another Toby Keith," fellow Oklahoman Blake Shelton declares in the new television special "Toby Keith: American Icon ." Ahead of the premiere of the two-hour concert special at 8 p.m. Wednesday, Aug. 28, on NBC, the network shared on social media a clip of Shelton's heartfelt tribute to Keith.