South Korean singer Kim Yoon Seol, known as Singer No. 6 on JTBC's reality program Sing Again 4, has passed away.
She was 27 years old.

According to a report by Allkpop, the singer died on June 7, 2026. However, the cause of her death has not been disclosed.
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The tragic news of Kim Yoon Seol's passing was shared by one of her acquaintances through Instagram on Wednesday, June 10.
The social media post read (as per English translation of Allkpop):“Seol has gone to heaven.
"Her phone and all accounts were locked, so I am sharing this through Instagram.
"Please keep her company on her final journey so she is not alone.”
KIM YOON SEOL'S SINGING CAREER
Kim Yoon Seol had an active career in the South Korean music industry.
She first gained public attention in 2013 after winning Mnet's singing competition The Voice Kids.
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She later continued her musical journey by appearing on television programs such as The Voice of Korea Season 3 and I Can See Your Voice 7 in 2020.
Most recently, she appeared on Sing Again 4, where she competed against Filipino singer Gwyneth "Gwyn" Dorado.
Dorado placed second in the South Korean television singing competition.
Read: Gwyn Dorado places second on South Korea's Sing Again 4
