Yukiko Okada (岡田有希子), born Kayo Sato (佐藤佳代) (August 22, 1967 – April 8, 1986 in Nagoya, Aichi Prefecture, Japan), known as Yukko to her fans, was a Japanese idol during the 1980s, signed to Pony Canyon records. She is still popular in spite of her death of more than 30 years ago.

In her beginning Okada went on many auditions for talents and singing. Finally she was accepted to Star Tanjou! on Nippon Television. In March 1983, she won the contest.

On April 21, 1984, Okada debuted with a single, "First Date". She was known as "Yukko" in the beginning of her career as a result…