"I don't drink/never been drunk at all," Waylon Wyatt sings in his song "O.D." And for good reason: The Hackett, Arkansas, native is all of 18. But Wyatt also understands exactly who he's singing to.

A quick glance at Waylon Mercy and Bray Wyatt side by side above reveals that they were both inspired by the Max Cady character from Cape Fear. The Hawaiian shirt is a dead giveaway, but there was ...