yyxy (Hangul: 이달의 소녀 yyxy), stylized as LOOΠΔ yyxy, is the third and final sub-unit of the girl group LOOΠΔ (Hangul: 이달의 소녀; lit. Girl of the Month). The line-up consists of Yves, Chuu, Go Won and Olivia Hye. They debuted on May 30 with their first mini-album beauty&thebeat. The title track "love4eva (feat. Grimes)" features popular artist Grimes.