1)open youtube and go to the song/video you want to download.
2)go to http://www.youtube-mp3.org/ and put in the URL from youtube.
3)click on the download button and save it onto your computer
4)open the file from the actual folder(music,downloads,documents etc)
5)right click on the file and click(open with) then select itunes,
6)it will play in Itunes and it will also save there too.