MEZZO" is a sub-unit from the Japanese multimedia franchise "IDOLiSH7," which encompasses music, games, and anime among other media platforms. The unit was introduced as part of the original rhythm game "IDOLiSH7," which was released by Bandai Namco Online in 2015, featuring character voice actors performing as their in-game personas. MEZZO" consists of two male characters, Tamaki Yotsuba and Sogo Osaka, voiced by actors KENN and Atsushi Abe, respectively. They are known for their harmonious vocal blend and songs that often explore themes of friendship, love, and emotional growth, appealing particularly to the franchise's young adult audience.

The group's name, "MEZZO," is derived from the Italian word for "half," signifying the combination of two halves to create a whole, much like the duo's collaborative approach to music. As a smaller unit within the larger IDOLiSH7 ensemble, MEZZO" has carved out a distinct identity, with their music characterized by a blend of pop, R&B, and sometimes introspective ballads. Their recent releases, such as "キズナ" (Kizuna), which translates to "bonds," and "カラフル" (Colorful), showcase their versatility and the emotive storytelling present in their songs. The track "Intermezzo" serves as a midpoint in their musical narrative, emphasizing the transition and connection between different phases of their artistic journey. With each release, MEZZO" continues to captivate fans with their unique sound and the deep emotional resonance of their music.