Back Street Opry at Lamar Theatre Lamar Theatre in Vernon, Alabama, Lamar County  Open Sat. 6:30-10:30. Saturday night music shows with as many as 25 different entertainers, professional and amateur. Country, gospel, blues, comedy. Different show every Sat. Address: 1st Ave NE, Vernon, AL 35592 Phone: (205) 695-7029 Latitude: 33.757774 | Longitude: -88.106950