Nine Muses A (Hangul: 나인뮤지스A, stylized as 9MUSES A or 9MUSES AMUSE) was the first sub-group of South Korean girl group Nine Muses formed by Star Empire Entertainment in 2016. It was composed of four Nine Muses members: Gyeongree, Hyemi, Sojin and Keumjo. The group released their debut single album Muses Diary on August 4, 2016.