Kei Yasuda (保田 圭 Yasuda Kei, born on December 6, 1980 in Futtsu, Chiba, Japan) is a Japanese singer, musician and actress under the Up Front Agency's Hello! Project. She was a member and co-leader of the Japanese idol pop group Morning Musume. Yasuda, along with Mari Yaguchi and Sayaka Ichii, were the second generation of singers to be recruited into Morning Musume. Morning Musume had only released one official single, Morning Coffee, prior to their joining. Yasuda was also a member of Japanese pop idol group Dream Morning Musume.