BLACK MIRROR (블랙 미러) Is a 7 member South Korean Girl Group that debuted May 20,2019 under Starlight Entertainment with their debut song "𝚄𝚗𝚍𝚎𝚛 𝚃𝚑𝚎 𝙱𝚕𝚊𝚌𝚔 𝙼𝚘𝚘𝚗𝚕𝚒𝚐𝚑𝚝'' ''2,3 Come join us into the moonlight! We are Black Mirror'' Made+Finished: June 11-19