I just found out about a place in Shelbyville looking for performers every Friday and Saturday nights 5:30-8:00. They do not pay the performers but you do get to eat the buffet meal for free. I think they like acoustic based music and have had several bluegrass and gospel performers come out to perform. There is a sound system set up with 2 microphones. They also pass the tip bucket and you can sell Merchandise.
Here is the contact info: Parkway Cafeteria 223 Lane Parkway Shelbyville, TN 931-684-7288