Sudannayuzuyully, often stylized as SYY, is a vibrant Japanese pop group that operates under the prominent Avex Trax label, known for their dynamic presence in the Asian music market. The trio was formed in 2017 and consists of members YURINO, Suda Anna, and Takebe Yuzuna, who were brought together as a sub-unit of the larger and renowned collective E-Girls. Each member of Sudannayuzuyully brings a unique talent to the group, combining YURINO's and Takebe Yuzuna's striking dance prowess with Suda Anna's reputable rap skills to create a blend of hip-hop infused J-pop that captivates a wide audience.

Sudannayuzuyully quickly gained popularity with their catchy hooks and high-energy performances that showcase their dance and vocal talents. Their discography includes a series of impactful releases such as "THANK YOU," "MAGIC TIME," and "LOOK AT ME NOW," cementing their status in the Japanese music industry with a contemporary sound that resonates with the trends of global pop music. Singles like "CALL ME NOW" and "OH BOY" further exhibit their commitment to crafting memorable melodies and engaging lyrics. Not only have they made a name for themselves through their music, but the members of SYY also serve as fashion and youth culture icons, influencing trends both inside and outside of Japan.