Ong Seongwu

South Korean singer

Audience311K
Fame78.5
Momentum10.0

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311K youtube followers

Audience311K
Fame78.5
Momentum10.0
South Korea rank#21
Wikipedia116.5K

Born 1995 · age 31South Korea

South Korea MusiciansSinger / Musician

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Biggest on YouTube
311K
@@osw_official
Wikipedia
19 languages
Cross-language footprint
Rank in South Korea
#21
Musicians
Age
31
Born 1995
Known for
20th Century Girl
2022

Summary

Updated 2026-08-31

Ong Seong-wu is a South Korean singer and actor. He is known for his participation in the survival reality show Produce 101 Season 2, where he finished in fifth place, and is a former member of the show's derivative boy group Wanna One. Following Wanna One's disbandment, Ong made his acting debut with the drama At Eighteen (2019) directed by Shim Na-yeon. He also established his career as a solo artist with the release of his first extended play, Layers, on March 25, 2020.