Sync Audio between two AppleTV's

This has probably been asked and answered many times, but I couldn't find a definitive answer:

I know in the past (and still can) you could use multiple airport expresses to do "whole house audio"; however, that made it kind of a limited use device for me (I already have an extended Wifi network and LAN). I recently purchased an Apple TV for my rec room and was wondering if I got a second Apple TV for my living room if I could stream the same song to both. I would love the ability to do both whole house audio and watch netflix at both tv's.

I may even add an airport express to my deck speakers if they all will work together.

Your help/confirmation in this matter is greatly appreciated!

Clarification: I am obviously asking about the second generation Apple TV.

Edit: And I want to control the whole thing with my iPad using the Remote App.