f(x)'s Luna celebrated her birthday on 12th August.
She updated her Me2day earlier today with a new photo.
She expressed,"My 20th birthday at the recording set! The weather is hot but thanks to the surprise birthday party prepared by the staff members and manager oppas, i became energetic. I'm thankful to everyone including my parents, grandmother and fans."
Fans commented, "Stay healthy", "More success for f(x)" and etc.