Let's make this birthday one to remember.

45 years old (Born on March 28, 1980)

Happy Birthday, Jo Seung-woo! From running straight into our hearts in "Marathon" to making us swoon nostalgically with your timeless charm in "The Classic," you've proven there's nothing you can't do—except maybe age. Seriously, what's your secret?

Whether you're rocking glittery wigs as Hedwig or battling inner demons (and hitting those high notes!) as Jekyll & Hyde on stage, your versatility never ceases to amaze. Here's hoping this year brings even more standing ovations and fewer split personalities.

Keep dazzling audiences everywhere; after all, classics like you only get better with time. Cheers to another spectacular trip around the sun!