Most recently, in 2023, she reunited with Rie Kaneko to form the duo
Rei Kuromiya is a Japanese singer and model who transitioned from a "junior idol" (child model) to a prominent figure in the "kawaii metal" and J-rock scenes. As of April 2026, she is primarily active as a member of the duo . Early Career as a Junior Idol
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Rei Kuromiya’s career represents a unique evolution within the Japanese entertainment landscape. Key Association Gravure/Modeling Junior Idol Breakthrough Vocalist / "Death Pop" Musical Lead Vocalist (Rock/Punk) Current Vocalist / Producer
Rei Kuromiya began her career as a junior idol at the age of 9, joining a talent agency that specialized in promoting young idols. She quickly gained popularity through her appearances on TV shows, radio programs, and concerts. Her big break came when she landed a role in a popular Japanese TV drama, which catapulted her to fame. Most recently, in 2023, she reunited with Rie
Kuromiya gained significant international attention as a founding member of , a chaotic and popular idol group formed in 2015. The group was known for mixing sugary pop with heavy metal elements ("death pop").
In addition to her music and television career, Rei has also modeled for several fashion brands and appeared in numerous magazine spreads. Her fashion sense and style have earned her recognition as one of the most fashionable junior idols in the industry. This link or copies made by others cannot be deleted
Born on November 29, 2000, in Saitama, Japan, Kuromiya entered the entertainment industry in 2008 at just eight years old. Signing with agencies like Charm Pro and Bambina Pro, she quickly became a prominent figure in the "Junior Idol" and under-15 (U15) gravure marketing sectors.
As she grew older, Rei’s personal style began to clash with the rigid expectations of the idol world. In 2011, while still a child, she formed the rock band with her sister, Aya [3, 4]. This project allowed her to explore a much darker, grittier, and more authentic side of herself. Unlike the manufactured smiles of idol performances, BRATS featured heavy guitar riffs and Rei’s powerful, raw vocals, signaling her desire to be taken seriously as a musician [4, 5]. Ladybaby and Global Viral Fame
: After Ladybeard's departure in 2016, the duo rebranded as The Idol Formerly Known as LADYBABY . They signed with JPU Records to release tracks like "Pelo" and "Pinky! Pinky!" across Europe. Disillusionment and Departure