Han Seung Yun

On May 18, 2021, it was revealed that Seung Yun had signed with the agency FLEX M, which is a record label under Kakao Entertainment. On April 17, 2022, Seung Yun participated in the live auditions for the Mnet band survival program Great Seoul Invasion with a new band temporarily named Han Seung Yun Band. The band made their debut under FLEX M around six months prior to the auditions.

Han Seung Yun Band then chose the official band name D82. D82 competed on Great Seoul Invasion, reaching the top 8 before being eliminated in episode 10. The band made their stage debut on round 1 of Great Seoul Invasion with Han Seung Yun's "Lovender" from his solo debut mini album.