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'BOYS PLANET' Korean contestants who used to be members of other K-pop groups

'Boys Planet' is an ongoing boy group reality survival show produced by Mnet to form a global K-pop boy group. The show is a male version of 'Girls Planet 999,' the survival program that formed the girl group Kep1er.

The survival program comprises a total of 93 male trainees as contestants. The trainees are divided into two groups: the K-Group, which includes candidates from Korea, and the G-Group, which includes participants from all over the world. Some of the participants had previously been in K-pop bands. Here, let’s have a look at the trainees of K-Group (Korean idols) who used to be members of other K-pop groups.



Kim Ji Woong is a South Korean actor and musician who is signed to the label Nest Management. On August 2, 2016, he made his debut with the K-pop boy band INX with the single "Alright." He used the stage name “Ji Nam” while he was a member of the band. The group disbanded in 2017. In 2018, it was disclosed that INX had won a lawsuit against their agency to terminate their contract. This former INX member is currently competing on the Mnet survival show "Boys Planet."


Lee Seung Hwan is a South Korean singer and dancer who is competing on Mnet’s reality survival program "Boys Planet" as a K-Group trainee. He is a former member of MBK Entertainment’s project boy group 1THE9, which debuted on April 13, 2019, with their first mini album, "XIX." The group was formed through MBC’s reality survival show, "Under Nineteen." 1THE9 was under an 18-month contract and officially disbanded on August 8, 2020, following the expiration of their exclusive contract.


Yoon Jong Woo is a South Korean rapper and lyricist who formerly belonged to the band Black Level. He made his debut with the rookie group on February 26, 2022, with their debut mini album, "New-Start." On November 29, 2022, VT Entertainment announced that Jong-woo, along with three other members, had left the group to pursue their idol dreams separately. He used to be known by his stage name, Ze:U, while he was a member of Black Level.


Cha Woong Ki, a contestant from Boys Planet's K-Group, used to be a member of the South Korean boy group TO1. TO1, known initially as TOO, is a K-pop boy band under the label WAKEONE. The group was formed as a result of the survival show “World Klass” and officially debuted on April 1, 2020, with the debut mini album “Reason for Being: Benevolence.” Woong Gi took a hiatus from the group on December 28, 2021, and his departure was revealed to the public on June 17, 2022.


Oh Sung Min, previously known as Jerome, is another former member of the K-pop boy group TO1. He is competing on Mnet’s boy group reality survival show "Boys Planet" along with his former bandmate Woong Gi. He was ranked eighth in the reality survival show "World Klass," making him a part of the boy group TOO, which is now known as TO1. On July 17, 2022, WAKEONE Entertainment announced that Sung Min had left the group but was still under the agency.

K-pop fans are eager to follow the journey of the survival program "Boys Planet." Who do you like most among the contestants?