The 2018 Stagecoach Country Music Festival will be a family affair for next year's Stagecoach headliner Garth Brooks. Trisha Yearwood - Garth Brooks' wife and a country music star herself - will be among a list of well-established and relatively new country music performers at next year's Stagecoach. More on the just-released Stagecoach lineup from KVCR's Ken Vincent.