Where do I download free music on IPHONE 4S?

Where do I download free music on IPHONE 4S?

This is what I do.
1) Go to youtube
2) Find the song you want
3) Right click the URL; a URL is like "www.example.com/123/456/78/9
4) Click on the "copy" option
5) Open a new tab or window, it doesn't matter
6) Go to "www.flvto.com"
7) Right click the white rectangle within the orange box
8) Click on "paste" and hit convert.
9) Open the folder that contains the song you've just downloaded
10) With Itunes open, just drag and drop the music to your devices name, your iphone's name. (Make sure your 4s is plugged in)
11) Enjoy! (IT SHOULD WORK)