It depends on what phone your using I have a tmobile g1 and I go to tubezen.com , type in what video I want and download it as 3gp . Your phone media player should be able to play it.
How Do You Send A Song From Youtube Onto Your Phone?
It does not work because you have to download limewire and get a usb for you phone
It doesn't work that way, it's better if you download songs from websites onto your mp3 player