Let's make this birthday one to remember.

33 years old (Born on December 17, 1991)

Happy Birthday, Lee Jae-jin! From rocking the stage as F.T. Island's coolest bassist to charming us all with your comedic timing in "Unstoppable Marriage," you've proven that talent and humor truly go hand-in-hand. Whether you're hitting those smooth bass lines or making audiences laugh out loud, you always manage to steal the spotlight effortlessly.

Here's wishing you another year filled with catchy tunes, unforgettable performances, and plenty of hilarious sitcom-worthy moments. May your birthday be as legendary as your music career—and may no one ever dare challenge your unstoppable charm! Keep grooving and smiling; we can't wait for what's next!