ai akamatsu (赤松愛, "akamatsu" "ai", february 14, 1951; {age 69} - ) is a japanese musician and keyboardist for the japanese rock band group, the ox until 1969. his real name is yoshinobu akamatsu (赤松義信, "akamatsu yoshinobu") and his nickname was ai-chan (アイちゃん).