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MBK Entertainment

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A South Korean entertainment company and K-pop management label that operated under several corporate identities before becoming defunct.

Last updated August 24, 2026

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Overview

MBK Entertainment was a South Korean entertainment company established by producer Kim Kwang-soo. Its corporate history began in 1999, when Kim founded the company as GM Planning. The business later became associated with Mnet Media and the wider CJ Group structure, reflecting the increasingly integrated relationship between music production, artist management, television programming, and entertainment conglomerates in South Korea. In 2006, GM Planning was absorbed by Mnet Media after Kim Kwang-soo joined CJ Group as a director. The company was relaunched in 2007 as Core Contents Media under Mnet Media. During the Core Contents Media period, the label developed a substantial roster of pop acts and became particularly associated with idol groups and vocal performers. Its artists included T-ara, Davichi, SeeYa, SG Wannabe, Coed School, F-ve Dolls, SPEED, Shannon, and DIA. The company also represented actors and participated in film and television production, making it more than a narrowly focused record label. The relationship with Mnet Media ended effectively in 2009, after Kim Kwang-soo was removed from the list of Mnet Media directors in September of that year. On October 1, 2014, Core Contents Media was acquired by MBK Co., Ltd., formerly known as CS ELSOLAR Co., Ltd., and was renamed MBK Entertainment. The new name was described as an abbreviation for “Music Beyond Korea,” presenting the business as a Korean entertainment operation with international ambitions. MBK’s best-known period included the management of T-ara, whose career made the company a prominent name in the K-pop industry, as well as the development of DIA and other groups. The company’s activities extended into televised competition formats. It was associated with The Unit: Idol Rebooting Project, a survival program intended to give previously debuted idols another opportunity, and with Under Nineteen, a joint MBC and MBK talent program for male trainees under the age of 19. The company also participated in the production or management ecosystem surrounding programs such as Produce X 101, Miss Trot, Mr Trot, and My Teenage Girl. MBK’s parent company suspended its entertainment business in December 2016. Despite that suspension, MBK-linked personnel and artists continued to operate through successor or affiliated structures. PocketDol Studio, also identified in the company’s history as the label associated with The Unit and later used for MBK-related activities, became the principal vehicle for several subsequent projects. In 2018, Kim Kwang-soo and the label were reported to have a partnership connected with The Unit, and he stated that he would focus on producing its winning groups, UNB and UNI.T. In 2020, former Produce X 101 contestants Hangyul and Dohyon debuted as the duo H&D under PocketDol Studio, while DIA was transferred to that sub-label before a scheduled comeback. By 2022, MBK Entertainment was described as defunct and closed after its activities moved to PocketDol Studio. Its legacy is therefore tied to a transition from a traditional artist-management company into a network of labels, television projects, and successor operations. The company’s historical importance comes from its role in launching and managing prominent Korean pop acts, its repeated corporate reorganization, and its participation in the survival-show system that became an important route for developing new idol groups.

History

MBK Entertainment traced its origins to GM Planning, founded by Kim Kwang-soo in 1999. The company entered the Mnet and CJ Group orbit in 2006, when it was absorbed by Mnet Media after Kim joined CJ Group as a director. In 2007, the business was relaunched as Core Contents Media under Mnet Media. Core Contents Media built a broad entertainment roster spanning recording artists, idol groups, vocal acts, and actors. Its best-known artists included T-ara, Davichi, SeeYa, SG Wannabe, Coed School, F-ve Dolls, SPEED, Shannon, and DIA. The company also participated in film and television projects, including Death Bell, Cinderella Man, Death Bell 2: Bloody Camp, and Sweet Temptation. The company’s relationship with Mnet Media effectively ended in 2009 after Kim Kwang-soo was removed from the list of Mnet Media directors. Core Contents Media subsequently operated as an independent business. On October 1, 2014, MBK Co., Ltd., formerly CS ELSOLAR Co., Ltd., acquired the company and changed its name to MBK Entertainment. The name was associated with the phrase “Music Beyond Korea.” MBK’s later history was closely connected with televised idol competitions. The company and successor label structures were linked to The Unit: Idol Rebooting Project, which produced the groups UNB and UNI.T, and to Under Nineteen, a collaboration with MBC that selected members for 1the9. MBK-related activities also appeared around programs including Produce X 101, Miss Trot, Mr Trot, and My Teenage Girl. Although the parent company suspended its entertainment business in December 2016, MBK-related artist and production activities continued through PocketDol Studio. In 2020, Hangyul and Dohyon debuted as H&D under PocketDol Studio, and DIA was transferred to the label. By 2022, MBK Entertainment was considered defunct, with its remaining entertainment operations moved to PocketDol Studio.

  • 2022

    Company became defunct

    [1]

    MBK Entertainment closed after its entertainment activities moved to PocketDol Studio.

  • 2020

    DIA transferred to PocketDol Studio

    [1]

    DIA moved to the affiliated successor label before a planned comeback.

  • 2018

    Under Nineteen launched

    [1]

    MBK and MBC launched a televised competition for male trainees under 19.

  • 2016

    Entertainment business suspended

    [1]

    MBK’s parent company suspended its entertainment business.

  • 2014

    Core Contents Media acquired and renamed

    [1]

    MBK Co., Ltd. acquired Core Contents Media and renamed it MBK Entertainment.

  • 2009

    End of effective Mnet Media relationship

    [1]

    Kim Kwang-soo was removed from the Mnet Media director listing, after which the company effectively operated apart from Mnet Media.

  • 2007

    Relaunched as Core Contents Media

    [1]

    The company was relaunched under the Core Contents Media name within Mnet Media.

  • 2006

    Absorption into Mnet Media

    [1]

    GM Planning was absorbed by Mnet Media after Kim Kwang-soo joined CJ Group as a director.

  • 1999

    GM Planning founded

    [1]

    Kim Kwang-soo established the company that later developed into MBK Entertainment.

Products and positioning

A South Korean music and entertainment company focused on artist management, K-pop group development, music production, and television-linked talent projects.

  • Entertainment services · 1999

    Artist management

    MBK managed singers, idol groups, vocal groups, and actors. Its roster included major K-pop names such as T-ara, Davichi, SeeYa, SG Wannabe, and DIA, alongside numerous shorter-lived or project-based acts.

  • Recorded music · 1999

    Music production and releases

    The company operated as a record and production label, releasing and promoting music by its managed performers. Its output covered idol pop, vocal-group music, solo releases, and project-group activity.

  • Television survival program · 2017

    The Unit: Idol Rebooting Project

    The Unit was a televised competition built around previously debuted idols seeking renewed opportunities. MBK-linked production and label structures were associated with the program, whose winning participants formed UNB and UNI.T.

  • Television talent program · 2018

    Under Nineteen

    Under Nineteen was an MBC and MBK-linked competition for male trainees under the age of 19. Its final participants formed the project idol group 1the9 under a defined television and label contract structure.

  • Screen entertainment · 2008

    Film and television production

    MBK and its predecessor operations were connected with screen projects including Death Bell, Cinderella Man, Death Bell 2: Bloody Camp, and Sweet Temptation, demonstrating activity beyond music management.

Marketing campaigns

  • 2018Under Nineteen

    South Korea

    MBK and MBC organized a competition for male trainees under 19 competing for places in a new idol group.

    Outcome. The selected participants debuted as 1the9 after the program.

  • 2017The Unit: Idol Rebooting Project

    South Korea

    A televised reboot competition for previously debuted idols, associated with Kim Kwang-soo and the MBK-linked successor label structure.

    Outcome. The program produced the project groups UNB and UNI.T.

Brand decisions

  • 2020

    Transfer of DIA to PocketDol StudioStrategy

    Background

    MBK-related operations were increasingly conducted through PocketDol Studio.

    Action taken

    DIA was transferred to PocketDol Studio ahead of its planned comeback.

    Aftermath

    The transfer illustrated the movement of MBK-linked artist activities into the successor label.

  • 2016

    Suspension of parent-company entertainment businessStrategy

    Background

    MBK Co., Ltd. suspended its entertainment business.

    Action taken

    Entertainment activities were gradually continued or redirected through affiliated and successor-label structures, notably PocketDol Studio.

    Aftermath

    MBK Entertainment was ultimately described as defunct by 2022.

  • 2014

    Acquisition and renaming by MBK Co., Ltd.M&A

    Background

    Core Contents Media changed ownership after operating independently from Mnet Media.

    Action taken

    MBK Co., Ltd. acquired the company and renamed it MBK Entertainment.

    Aftermath

    The new company continued artist management, music production, and television-linked entertainment activities.

  • 2007

    Relaunch as Core Contents MediaStrategy

    Background

    Following its absorption into Mnet Media, the business adopted a new operating identity.

    Action taken

    GM Planning was relaunched as Core Contents Media under Mnet Media.

    Aftermath

    The Core Contents Media name was used until the company was acquired and renamed in 2014.

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