Girls' Generation's YoonA will be releasing an OST for her currently airing drama 'The K2'!

The drama will be releasing two OSTs this coming October 14, Part 2 sung by Yoo Sung Eun called "Once in a While" and Part 3 sung by YoonA titled "Amazing Grace".

Look out for the OST and make sure to catch YoonA on 'The K2', airing every Friday and Saturday on tvN!