Taeyeon promotes them on her IG & she met Sooyoung at SMA. Look at her fangirling: https://twitter.com/yoojimx/status/1358359678711861248?s=20 https://pbs.twimg.com/media/En4BYtNUUAANYyn.jpg https://preview.redd.it/oxq5o25b8of61.jpg?width=640&crop=smart&auto=webp&s=8396fe6188d79d4afcc1e6e96e574f806d74667d https://preview.redd.it/jzruhmhe50f61.jpg?auto=webp&s=6935a9c7e26a2364e5fab650b0749ed640ac11fb