Apple TV stream to Airport Express

Can I stream music from my new Apple TV (living room) to my Airport Express (connected to kitchen hifi)

I have a PC running I-Tunes 10.1 connected via ethernet to airport Extreame in cupboard.

In front room have Apple TV connected to home cinema connected to airport extreame via ethernet.

I also have an airport express connected to hi-fi in kitchen.

I can stream to both airport express and apple tv from MAC book, but I'd like to use Apple TV to stream music to airport express, as the interface is easy (my wife likes the interface).

Martin