Blackswan (Korean; 블랙스완, stylized as BLACKSWAN) is a South Korean girl group formerly known as RANIA (Korean; 라니아) and BP RANIA (Korean; BP 라니아). The group consists of Youngheun, Leia, Fatou, and Judy. A fifth member, Hyeme, left the group on November 10, 2020. The group debuted on October 16, 2020 with the full album Goodbye Rania.