Let's make this birthday one to remember.

40 years old (Born on December 24, 1984)

Happy Birthday, Austin Stowell! From capturing hearts on "The Secret Life of the American Teenager" to dazzling us in your recent projects, you’ve seamlessly moved from teen heartthrob into a seasoned star with undeniable charm. Your performances always give audiences reasons to smile—and secretly binge-watch old episodes.

As another year lights up for you (but don't worry—you haven't aged since teenager days), remember that you're not just famous and talented: You've clearly discovered the secret life of staying timelessly cool. Celebrate big today—though scandalous teenage secrets are optional at this stage in life. Cheers to many more laughs ahead!