DROP

On January 12, 2026 1017 Entertainment revealed their first boy group DROP. On January 13, Gyu Eon and Cheol Kyu were revealed as the first and second members, respectively. The next day, Ju Sung and Jae Won were revealed as the third and fourth members, respectively, and Seung Woo was revealed as the fifth and final member on January 15.

On January 17, DROP announced that they would be making their debut with their first digital single "Booster", scheduled to be released on January 23.