Singers Se7en and Ock Joo Hyun's picture from the past was revealed.

"Ock7, Ock Elle, 24-year-old so cute," posted Se7en (Choi Dong Wook) on his Instagram on Thursday along with a picture.

In the picture, Se7en and Ock are posing for a self-camera photo together. The two are showing much younger looks than now, showing off their long-lasting friendship.

Se7en is currently playing in the musical "Elizabeth."