岩井由紀子

Yukiko Iwai (岩井 由紀子, Iwai Yukiko), also known by the nickname Yūyu (ゆうゆ, Yūyu), is a Japanese singer and actress born May 26, 1968 in Yokohama, Kanagawa Prefecture, Japan. Iwai was a member of the all-girl pop group Onyanko Club (from June 21, 1985 until August 31, 1987), and she was the shortest of all the members at 150 centimetres (4 ft 11 in). She was also half of the pop group Ushiroyubi Sasaregumi, a spin-off group of Onyanko Club. She graduated from Kaetsu Women's Junior High and High School (now Kaetsu Ariake Junior High and High School), but left Kaetsu Women's Junior College (now Kaetsu University Junior College) before she finished. She is the younger in a set of identical twins.