MAMAMOO released the special single 4WARD on June 4, 2026, led by the title track "4 Flowers." The song is a mid-tempo pop track that pairs stylish guitar with dense drums, themed around bonds that hold steady over time, like flowers that bloom and wither but stay connected by a single root. It is the four members' first full-group release after several years spent on solo work, arriving in the group's 12th-anniversary year. 4WARD also carries the intro track "Blooming" and acoustic and Latin versions of the title track.
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Mamamoo are a South Korean girl group formed by RBW, who debuted on June 18, 2014 with the EP "Hello" and its single "Mr. Ambiguous." The group consists of four members: Solar, Moonbyul, Wheein, and Hwasa. Distinguished by a retro and jazz-influenced sound and strong live vocals, they earned early critical acclaim and built a reputation as one of the more vocally driven girl groups of K-pop's third generation. Hits such as "Um Oh Ah Yeh," "You're the Best," "Decalcomania," "Starry Night," and "Egotistic" defined their run, and members became known for songwriting much of their own material. Each member has also pursued solo activities, with Hwasa in particular achieving prominent solo success. Recognized for their harmonies, performance, and distinct musical identity, Mamamoo are widely regarded as one of the premier girl groups of their era.