The Jung sisters, Girls’ Generation’s Jessica and f(x)’s Krystal, will be releasing their first duet track for the OST of SBS upcoming drama series, ‘To The Beautiful You’ (For You in Full Blossom).

Titled “Butterfly”, their OST track will be released at midnight on August 15th through various music distributions websites. The song has a playful melody while its lyrics sing of the innocence that a girl and boy goes through experiencing their first love.

Based on a Japanese manga, ‘To the Beautiful You’ is about Goo Jae Hee (Sulli), an extreme fan girl of champion high-jumper Kang Tae Joon (Minho), who tries to make a comeback from a career-threatening injury. To help revive his career, Jae Hee impersonates a guy to attend Tae Joon’s all boys high school.

The drama will premiere on August 15th at 9:55PM KST on SBS. Check out the preview of “Butterfly” here.