Let's make this birthday one to remember.

78 years old (Born on September 05, 1946)

Happy Birthday, Loudon Wainwright III! From your hilarious yet heartfelt role in "Knocked Up" to decades of witty songwriting and storytelling brilliance, you've kept us laughing (and occasionally crying) through life's absurdities. Your ability to blend humor with genuine insight is unmatched—truly timeless.

Here's hoping this birthday brings you as much joy as the countless smiles you've given fans over the years. May your day be filled with laughter louder than a sold-out concert hall—and may no one ever mistake you for Seth Rogen's actual dad again!

Cheers to another year of music, mischief, and memorable moments!