Do you recognize this late '70s bowl cut? The gap-toothed smile won't be much help in guessing who this is, as this country superstar now has one of the better grins in the business. Your best shot at identifying the man who shared this boyhood yearbook photo is to study the eyes. The answer is in the eyes.

The Louisiana-born singer and his equally famous wife now have three kids of their own, who are about the age their dad was when this photo was taken. It was a hard-fought road to the top for this singer, but after 20 years, his is still one of the first names one thinks of in a conversation about the best modern country male voices. Click the button below to find out whose yearbook photo this is and to see more from the vault.