The 2015 theme was an homage to Austin's psychedelic routes, including Thirteenth Floor Elevators and Bubble Puppy. Todd Rundgren performed as the headliner alongside a diverse group of local Austin Musicians.

Acts included The Black Angels, White Denim, The Bright Light Social Hour with Ray Wylie Hubbard, Hayes Carll, Israel Nash, Wood & Wire, Max Frost with Ian Moore and Jane Ellen Bryant, Water and Rust, Gina Chavez, Vallejo and David Grissom.