Both are multinational groups.
Posh Girls
Posh Girls (파시걸스/ポッシュガールズ), formerly known as ZDreamZ and One Dream Project, is an 8 member Z-pop & K-pop pre-debut girl group under No.1 Media (also known as ZPworld) formed of Japanese and Korean members. They will be debuting on August 18th, 2021. On July 8th, 2021, the Japanese line (Miyu, Riona, Niina and Tsugumi) released a pre-debut Japanese song “Victory” in honor of the 2020 Olympics held in Tokyo.
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Beauty Box (뷰티박스) is a 6-member multinational girl group under BY-U Entertainment. The group consists of: Sara(Japan), Rina(Japan), Gahyun(Korea), Jerin(Thailand), Anh(Vietnam) & Sori(Korea-hidden member). Beauty Box started being active on June 26, 2021 on YouTube. Their debut date is currently unknown.