10 Things You Didn’t Know About Jason Aldean: No. 9

9. Nine is his lucky number.

The number nine was Aldean's baseball jersey number in high school, and he's called it his lucky number ever since. His other lucky number is three, because that was the jersey number he wore before high school. Aldean says he chose it because that was Atlanta Braves infielder Dale Murphy's number when he was young.