f(x)'s Sulli celebrates birthday with KARA's Jiyoung

KARA's maknae Jiyoung updated her Twitter with a new photo on 29th March.

She is seen posing happily with f(x)'s Sulli in the photo above. Sulli celebrated her birthday yesterday and the friendship between the 94-liners is obvious in the photo above.

Fans commented,"Friendship forever","Happy Birthday Sulli" and etc.

Note: This photo was taken last year