Check out the websites for LITTLE SHOP OF HORRORS, THE PRODUCERS and HAIRSPRAY..and there have been some articles about him in various newspapers recently (do a Google 'news' search). I was pleased to learn he did his college thesis on "Costume in Medici Court Festivals".
You're right, he's a terrific designer and supposedly a real sweetie-pie.
"Christ, Bette Davis?!?!"