Cosmic Girls, also known as WJSN (우주소녀), is a South Korean ten-member girl group formed in 2016 by Starship Entertainment and Yuehua Entertainment. Cosmic Girls debuted with 13 members, but Xuan Yi, Cheng Xiao, and Mei Qi left the group in March 2023. The group is known for its unique concept that combines science fiction and fantasy elements.

Cosmic Girls have released hits like "Secret", "Save Me, Save You", and "Boogie Up", which are characterized by catchy melodies and colorful music videos. The members possess diverse talents ranging from singing and dancing to acting.

Cosmic Girls have also gained international success and are known for their energetic live performances and extravagant outfits. The group has a loyal fanbase known as "Ujung" and has established a strong presence in the K-Pop scene. Cosmic Girls are recognized for their versatility, creativity, and fresh energy, making them one of the rising girl groups in Korean pop music.