Happy birthday to Super Junior's Leeteuk!  Now that it's July 1 in South Korea, he has turned 31 years old, so fans quickly took to celebrating on Twitter with "#HappyLeeteukDay," which even topped the worldwide trending list.

Make sure you join in on the party and wish him a happy birthday, as well.  Meanwhile, he is still serving in the military, but will be out soon as his discharge date is July 29!  Fans should be able to see him soon.  

Happy birthday, Leeteuk!