Singer 옥희, a legendary figure in the K-pop scene, particularly in the 1970s, has passed away due to complications from kidney cancer. She was 73 years old. Known for her hit songs '나는 몰라요' and '이웃사촌', she was a leading vocalist of her time and a member of the girl group '서울시스터즈'. | Singer 옥희, a legendary figure in the K-pop scene, particularly in the 1970s, has passed away due to complications from kidney cancer. She was 73 years old. Known for her hit songs '나는 몰라요' and '이웃사촌', she was a leading vocalist of her time and a member of the girl group '서울시스터즈'.