How to download free music on my iPhone 4S?

I want to download music on my phone, and I don't know which apps to use. And when you download an app you have to go to a website to download the music. I don't know which website to go to also. Also is there a limit to how much you can download. Keep in mind I'm looking for a free app and website to download from I guess. Lol.

If you jailbreak, you can get a tweak that will let you download stuff from Safari. That will be your best bet. It will not end up in iTunes, but you will be able to play it.iFile will also be needed to play it. It should be downloaded straight to your home folder.