King & Prince

King & Prince is a Japanese boy group formed under the Johnny's Jr. training system, originally emerging from the merger of two units, Mr. KING and Prince. The group made its major-label debut in 2018 with the single «シンデレラガール (Cinderella Girl)», signed through Universal Music Japan under a dedicated imprint created for Johnny's-affiliated acts. Their pop sound leans on polished vocal harmonies, R&B-inflected production, and choreography-driven performances typical of Japanese idol groups aimed at a broad, cross-generational audience.

The group built its identity around clean-cut, romantic pop songs such as «Namae Oshiete» and «Lovin' You», alongside more theatrical, ballad-oriented material like «Theater» and «恋降る月夜に君想ふ», showcasing a range from upbeat idol-pop to emotionally driven vocal showcases. Tracks like «Magic Touch» and «moooove!!» lean into more uptempo, dance-forward production, reflecting the group's ability to move between styles while retaining tight vocal blend as a signature trait.

Over time King & Prince's lineup has undergone changes from its original formation, though the group has continued releasing music and maintaining a prominent presence within Japan's idol and pop music scene. Their catalog reflects the broader Johnny's/STARTO ENTERTAINMENT approach to idol pop: frequent singles, strong visual branding, and a close relationship between music releases and members' work in television and stage performance.