Happy birthday to the one and only Lee Seung-gi! Can you believe you're 37 already? Seems like just yesterday we were jamming out to your hit songs and watching you steal our hearts on screen. Here's to another year of your amazing talent, charm, and good looks. May your day be filled with all the things that make you smile, including lots of cake! Cheers to another year of being fabulous at 37. Happy birthday!