Let's make this birthday one to remember.

54 years old (Born on January 26, 1971)

Happy Birthday, Bryan Callen! From your unforgettable role in "The Hangover," where you taught us all the importance of keeping pants on during a Vegas adventure, to your hilarious stand-up routines that leave audiences gasping for air—your comedic genius never fails to entertain.

Whether you're cracking jokes on stage or stealing scenes with impeccable timing, you've proven laughter truly is timeless. Here's hoping this birthday brings fewer hangovers and more memorable moments (though we wouldn't mind another epic Vegas mishap). Keep making us laugh; after all, age is just a number—but comedy gold lasts forever!