**** I'm quite surprised, but I prefer the Ludacris version. My radio station plays this one and anytime I hear it, I feel there's something lacking. It's still quite good, but this is one of the few tracks that Ludacris's presence improves.
***** Definitely prefer the solo version to the Ludacris version. Probably because I knew the song BEFORE it was changed for the American market. Sure it is repetitive as all hell, ut it is damn catchy.