KNK are stepping closer to comeback with more concept photos.

On May 15, KNK released more photos for their 2nd single album 'Gravity'. The boys continue to radiate charisma through the pastel toned cuts. You can enjoy the full pull release of KNK's 'Gravity' on May 25.

SEE ALSO: Actress Kim Ji Won revealed to have purchased a building for 6.3 billion KRW (4.6 million USD)

Stay tuned.