Colin Grant-Adams (left), watches as 16-year- old Isaac Husley plays the theme song to Mortal Combat on his guitar. Husley is from Chattanooga, Tennessee, and said he was in town visiting the Hidden River Cave with his grandmother. He said it was interesting to perform with the Jammin’ on the Porch group, especially since they mostly play classic country, blues and bluegrass. “I’ve always played classics so it was like trying something new,” he said. “Everybody was nice here.”