What is the fine-grained topic of the following text: Jason Aldean, Luke Bryan, Florida Georgia Line, Hunter Hayes, and Tim McGraw are the artists who will be tributed by Alabama, Dierks Bentley, Peter Frampton and Hayden Panettiere, Lady A, Train’s Pat Monahan, Cassadee Pope, Lionel Richie, Travis Tritt, and Dwight Yoakam on the 90-minute special. Only return the topic.
Tribute to country artists on a 90-minute special show.