"Closer" ("한 끗 차이") is the second digital single by KNK. It was released on April 28, 2018 and is sung by the group's vocal line: Jeong In Seong, Kim Ji Hun, and Oh Hee Jun.

Track list

  1. "Closer (한 끗 차이)" - 4:23
  2. "Closer (한 끗 차이) (Inst.)" - 4:23
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