- For other people known as 'Yun Sung', see Yoonsung.
Lee Yun Sung (이윤성) is a South Korean trainee .
He is best known for being a contestant on the survival shows Project 7 and B:MY BOYZ.
Career[]
2024: Project 7[]
On October 18, 2024, he was revealed as a contestant on JTBC's Project 7 but was unable to pass the survival round.
2025: Be My Boyz[]
On May 2, 2025, Yun Sung was announced as a contestant on the SBS survival show B:MY BOYZ.[1]
