Song recorded from an hiphop radio (really great) [link included]

this was recorded from an hiphop radio, the song is really great in my opinion, but i can't understand the lyrics and i can't find the real name of the song, to buy/download, someone can help me?

http://www12.zippyshare.com/v/57222804/file.html

sorry for some background sounds and my english...

Hi, please insert the link correctly,

Thanks.