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A CUBE Entertainment confirmed Huh Gak's comeback with his digital single "DAY N NIGHT", which will be released on October 7, through a teaser image on September 30.

The most eye-catching part of the teaser image was the line that reads, "Huh Gak X WHO! (collaboration),"�making fans curious as to who will be Huh Gak's next duet partner following labelmate�A Pink's Eunji.

Stay tuned to find out who his mystery partner is! Any guesses?