Kim Yoon Oh

Name: Kim Yoon Oh
Native name: 김윤오
Also Known as: Thunder, Earth Kim, Kim Yun O, Kim Sung Gu, 김성구
Nationality: South Korean
Gender: Male
Born: January 22, 1992
Age: 34

Kim Sung Gu, known professionally as Kim Yoon Oh, is South Korean singer, dancer, choreographer and former member of HIGH4 (하이포). Before debuting, he spent around eight years as a trainee. He made his debut in 2014 as the group's leader, main vocalist and lead dancer with their first single "Not Spring, Love, or Cherry Blossoms." However, he asked the company to quit the group and left in 2017, just six months before HIGH4 disbanded.

He made his solo debut later that year using stage names such as Earth Kim, Thunder and Kim Ji Gu, and most recently Kim Yoon Oh.

(Source: MyDramaList) Edit Biography

Year	Title	#	Role	Rating
2024	Mr. Trot Season 3 Korean TV Show, 2024, 12 eps [Contestant] (Regular Member)	12	[Contestant] Regular Member	8.7
2023	The Age of Oppa Korean TV Show, 2023, 10 eps [Contestant] (Regular Member)	10	[Contestant] Regular Member	0.0
2015	King of Mask Singer Korean TV Show, 2015, 525 eps [Contestant] (Ep. 444-445) (Guest)	525	[Contestant] (Ep. 444-445) Guest	8.0
2013	After School Club Korean TV Show, 2013, 671 eps (Ep. 104, 186) (Guest)	671	(Ep. 104, 186) Guest	7.8