Onewe (stylized as ONEWE), is a South Korean boy band formed in 2015. The band is composed of five members: Yonghoon, Harin, Kanghyun, Dongmyeong and CyA. ONEWE was originally formed under the name M.A.S 0094 (Make A Sound 0094) consisting of the same five members. They released the digital single "Butterfly, Find a Flower" on August 13, 2015 under Modern Music. They later released two EPs Feeling Good Day in March 2016 and Make Some Noise in January 2017, which was their last release as M.A.S 0094. In June 2017, they moved to RBW and were renamed as MAS. In June 2018, it was announced that they were to re-debut as ONEWE.