At first, I didn't like the idea of Paul McCartney doing songs with Kanye West. Then there was the whole wave of funny americans that knew who Kanye was and thought he was promoting the 'unknown' Paul McCartney. Add Rihanna to the mix and you've got a really great song.
Download Rihanna, Kanye West & Paul McCartney - FourFiveSeconds (m4a from iTunes) [6.09 MB]