Music urls?

Where can you get music urls? I really want the one for the song Stop Me by Mark Ronson Feat. Daniel Merriweather. Please help! I've tried so long to find it. Oh and American Boy by Estelle Feat. Kayne West. Where can I find these songs and many others???

youtube...or you could try projectplaylist.com
if you want to download them thats a diff story

thanx =]

http://search.playlist.com/tracks/ronson%20stop%20me
that's the mark ronson feat. the other guy scroll over it hit ctrl. C and then go to the search thingie and press ctrl. V that will take you to playlist.com where you can create playlists for your pleasure, for myspace, facebook, faithfreaks, and many others for free! I'm sure you can find the other song there too it's a great site! hope that helps.