Watch Steven Tyler Join Country Rockers The Cadillac Three for 'Sweet Emotion' Performance: Exclusive Video
![Watch Steven Tyler Join Country Rockers The Cadillac Three for 'Sweet Emotion' Performance: Exclusive Video](http://www.billboard.com/files/styles/promo_225/public/media/cma-fest-2015-cadillac-three-billboard-650.jpg)
The Cadillac Three has definitely been causing a lot of buzz this year, with singles such as “The South” and “White Lightning.” On Saturday night (...