Fight Night Round 4 song

I was wondering if anyone knows what is the song that is played while you are on the XMB bar.

If it helps, I am refering to the demo and not the final game (but I think it should be the same).

Thanks in advance.

No one knows? =(

Im sure its not a song but jsut custom music made for the game

Ask a friend with a V-Cast phone or iphone to hold it up and use that song recognizer app.

Thanks for both of your replies. I thought the sample was really good and wanted to know who was it from.