T-ara's Hyomin tweets Happy Birthday to SNSD's Sunny!

Fans of Invincible Youth's "SuByung couple" were thrilled today as T-ara's Hyomin posted a happy birthday message on her Twitter for Girls' Generation's Sunny. The tweet read "The movie Sunny is really fun.. by the way it's May 15th, Sunny-yah?? Happy Birthday! ❤"