Label
WM Entertainment
WM Entertainment (WM 엔터테인먼트) is a South Korean entertainment company founded on July 21, 2008, by former singer Lee Won-min (birth name: Kim Jung-soo). On April 7, 2021, RBW acquired a 70% stake, making WM a subsidiary of the broader RBW group, which also houses MAMAMOO, ONEUS, and Purple Kiss.
WM launched its first boy group B1A4 on April 23, 2011, and the group became one of the most consistent acts in early 2010s K-pop. Their first girl group Oh My Girl debuted on April 21, 2015, going on to chart major hits through the early 2020s and build one of the industry's most loyal fanbases. Boy group ONF followed in August 2017, developing dedicated audiences across Korea and Japan.
In 2022, WM signed former IZ*ONE member Lee Chae Yeon. The company launched new girl group Uspeer in the first half of 2025, its second girl group in a decade. On March 11, 2026, WM acquired 257 Entertainment, expanding its roster and production capabilities further.
Based in Mapo-gu, Seoul, WM operates artist management and music production across its roster, functioning as an independent creative unit within the RBW family while maintaining its own artist development identity.
Gallery
Oh My Girl at Golden Hourglass showcase, July 2025. Photo: CC BY 3.0 (YouTube)
Artists & Groups
Fans Also Ask
What artists are under WM Entertainment?
WM Entertainment's current roster includes XLOV (boy group, 2025) and Oh My Girl (girl group, 2015). The label previously managed B1A4 (2011-2025) and ONF (2017-present). Following the March 2026 acquisition of 257 Entertainment, XLOV joined the WM family.
Who owns WM Entertainment?
WM Entertainment is a subsidiary of RBW Inc., which acquired a 70% stake in April 2021. RBW is one of South Korea's leading entertainment conglomerates, also owning DSP Media and managing MAMAMOO, ONEWE, and Purple Kiss.
When was WM Entertainment founded?
WM Entertainment was founded on July 21, 2008, by former South Korean singer Lee Won-min (birth name Kim Jung-soo). The company name is derived from the founder's stage name. It became an RBW subsidiary in April 2021.
Did WM Entertainment acquire 257 Entertainment?
Yes. On March 11, 2026, WM Entertainment acquired 257 Entertainment in a comprehensive deal. The acquisition brought XLOV under WM management, and 257 Entertainment CEO Park Jae-yong was appointed co-CEO of WM Entertainment alongside existing CEO Kim Jin-woo.
What is WM Entertainment's relationship to RBW?
WM Entertainment has been an RBW subsidiary since April 2021, when RBW acquired a 70% stake. WM operates semi-independently within the RBW group, which also includes DSP Media. WM's artists benefit from RBW's global distribution and promotional infrastructure.
