Real Name: Gary Allan Herzberg

The 'Tough Little Boys' singer's real last name is a bit of a mouthful, and in a world where it's important for fans to remember who you are (and how to spell your name), a name that sounds like a sneeze isn't a good thing. There is also a theory that suggests some country music fans will avoid artists with un-American sounding names. There's no evidence to suggest that this went into Gary Allan's decision, however.