How would you wirelessly stream music from your iTunes to your iPhone?

So I have an apple TV and its connected wirelessly to my computer so I can listen to music from my itunes library through the Apple tv with no problem. Can the same thing be done with my iPhone, I want to plug it into my dock to listen to music but I don't want to put actual music on the phone, so I figured I could just stream it to the phone from my computer like I do with the apple tv. Can you even do this and if so how?

Sign up to icloud and stream through it