It's called 'Heart of a Warrior' and was on the same album as 'Going Crazy (Feat. Robbie Williams) and Bassline Junkie.

I think that if he had released this as a single, instead of Going Crazy or Bassline Junkie, it would of done pretty well because it's similar to Chris Brown and Chipmunks - Champion. It has a pretty commercial sound that you could imagine hearing on the radio and is much better than Going Crazy (Which in my opinion was honestly terrible) Whereas for a commercial UK rap song, this is actually pretty good and I imagine Radio 1 wouldn't of snubbed it, like they did with his Robbie Williams track.

http://youtu.be/51RI0ffw6CY

Not sure why my link's never work :/ just copy and paste it. It has to be that exact video because many of the other uploads of the same track have had the pitch of the vocals changed, due to copyright, so doesn't sound as good.