Mickey Rooney has signed a contract to write his life story and the hardcover version is due in the spring of 1990. The book, still untitled, will chronicle his 65 years in show business, eight marriages and relationships with stars like Marilyn Monroe, Judy Garland, Elizabeth Taylor and Red Skelton. "This book took me a whole lifetime to write," Rooney said. "I can't remember anything I've been more excited about."