Maajuu (まじゅ; born April 25, 1998) is a Japanese singer from Hachioji, Tokyo. She first became known as 麻珠, a member of Little Glee Monster from 2012 until 2017. After announcing an indefinite hiatus on April 16, 2017, she formally left the group on June 30, 2017, at the end of her contract.
She resumed activities in 2019 under the name Maju Arai (荒井麻珠) and also worked as a creator, handling chorus arrangement and direction for "華麗なる復讐" on Momoiro Clover Z's album MOMOIRO CLOVER Z. In 2020 she released the singles "Find MySelf!" and "DOOR"; "DOOR" was used as an ending theme for Zoids Wild ZERO, where she also made her voice acting debut as アリア・ジュマ. On October 1, 2021, she made her major debut under her real name 荒井麻珠 on the Purple One Star label within Bandai Namco Arts, now Bandai Namco Music Live. She later performed "Listen", the ending theme of Gekai Elise, and in October 2026 adopted the artist name Maajuu.
