How to get free music on my iphone from my computer?

Like I use a youtube converter to get music off youtube, for some reason the music won't transfer to my iphone 3g, help? I've tried ALOT of apps.

You have to transfer the files into itunes first. The youtube conveter i used i set to download the files directly to my computer so all i had to do was open itunes and go to music and then bring up the folder with the music and drag the music into albums (first make an album) Hope you can try this and maybe it will work

I've tried loads of mp3 sites, both free and those you have to pay for. I discovered that with free mp3s every now and again I would get infected by a virus which mucked up my pc. I have since used Iomoio - you pay 16¢ a song but its worth it! They have all the latest chart hits and over 3 million mp3s. If you use the link below they even give you 2 free tracks to try it out. Also bear in mind that you don't want to get busted and fined! Well worth checking out