Sori, f(x)'s Victoria, and SECRET's Zinger will be celebrating their birthdays together over the Lunar New Year holiday on February 2nd! Although they're all turning a different age, the girls developed a friendship by appearing on numerous variety programs together, such as KBS's "Invincible Youth" and MBC's "Bouquet". Through her Twitter, Sori thanked fans for their birthday wishes by writing, "I was so touched.� Thank you for congratulating my birthday. I think I'll be able to sleep now, I'm so, so happy." In a separate message to Zinger, she wrote, "Happy birthday, Zinger. I hope only good things happen to you." Other stars such as Gu Ji Sung, who knew them through "Bouquet," congratulated their birthdays as well, followed by Jewelry's Eunjung. Fans from all three stars have also come together to leave birthday messages on each other's fancafes. Source: Kuki News via Nate