Untouchable's Sleepy will be coming back to the music scene with his first ever solo single "F/W"! He's taken part in many hit collaborations and duets, but this will be his very first solo release.

The single, which is short for "First Warm Up," holds the meaning of Sleepy shooting for a higher place by loosening up his body with a warm up. Primary took on the producing for the rapper's entire album; you know the results can only be good when Primary is involved! 

"First Warm Up" will feature the lovely Baek Ah Yeon and her equally lovely vocals, and rapper Basick is said to be another artist featured on one of the album's songs.

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Sleepy's solo single "F/W" will drop on various music portals on October 20 at midnight so be sure to keep an eye out!