By Breaking Celebrity News Staff

Howard Stern, Sharon Osbourne and Howie Mandel sauntered into Austin, Texas for auditions on America's Got Talent Tuesday, and might have fished out a real diamond-n-the-rough in Andrew De Leon.

The 19-year-old Gothic-inspired De Leon, sporting disarming contacts and a decidedly-dark look, claimed never to have sang or performed in front of an audience before.

"Rough day at the office?" Stern asked De Leon, who looked like a one-off act inserted into the show for comic relief, but turned out to be so much more.