Japanese girl group cosmosy, comprised of himesha, de_hana, kamion, and a’mei, is recognized for their unique music and performances as a global artist collective. The group's name, "cosmosy," embodies the concept of limitless potential and growth through challenges, reflecting their diverse musical styles and individual strengths to establish themselves as icons of a new era.

Launching with the pre-debut track "zigy=zigy" in December 2024, cosmosy offered a preview of their artistic universe before their official debut with the single "Lucky=One" on April 11, 2025. Collaborating with NTT docomo Studio & Live and Sony Music Entertainment Korea, cosmosy is making strides in the global music landscape, blending their members' unique personas into a harmonious musical force that captivates audiences worldwide.