Let's make this birthday one to remember.

39 years old (Born on April 09, 1986)

Happy Birthday to the fabulous Leighton Meester! From ruling Manhattan's Upper East Side as the iconic Blair Waldorf in "Gossip Girl," you've taught us all how to accessorize with headbands, plot revenge stylishly, and deliver witty comebacks effortlessly. Your portrayal of Blair remains timeless—just like your impeccable fashion sense.

Beyond Gossip Girl, you've continued charming audiences with your music and versatile acting roles. Whether it's captivating us on stage or screen, you always bring warmth and humor that brighten our days. Here's hoping your birthday is filled with laughter, love—and perhaps fewer scandals than Blair's typical celebrations!