I. Introduction
Strong is a digital single released by the four member project group WJMK, formed by Starship Entertainment and Fantagio.
II. Background & Release
On May 1, an image was released on WJSN’s social media accounts with the text, Coming soon. The hashtags include WJMK, the WJSN members Seola and Luda, and the Weki Meki members Choi Yoojung and Kim Doyeon. On May 9, the green ver. teasers for WJSN and Weki Meki’s project group WJMK were dropped which showed individual photos of WJSN’s Seola and Weki Meki’s Kim Doyeon. In the next day, the teasers of Luda and, Yoojung were dropped. On May 15 and, May 16. the blue ver. teasers for the group in duo were dropped respectively in the same pattern. 2 days later, the group teasers was dropped. On May 24, the MV teaser for the title was uploaded and, the MV finally came out on June 1.
