Itunes Radio was in my music app but now isn't?

I have an iPhone 4S.
I live in Vermont, US

I have iOS 7
I was using iTunes Radio this morning and I wanted to listen to it again. So about an hour ago I opened my music app expecting the radio tab to be there but it wasn't. So I spent a good hour trying to get it back. I tried rebooting my phone, and shutting off my phone and turning it back on numerous times.

I really want it,
What should I do?

It could have moved to the hidden apps within the music try this:
Open your Music app and then on the bar on the bottom where it says Playlists, Artists, etc. There should be one that says More, it should be in there. If it's not than you should restore your phone with iTunes on the computer and it should fix the issue.