That's not his real name you twat. His real name is Shawn Corey Carter.
When Mr Carter was younger he made money by selling drugs to other people, which is generally a bad idea. He doesn't do that any more.
In 1995 he started his own label called Roc-A-Fella and released his debut album 'Reasonable Doubt' a year later.
His albums have always a been a hit and miss to be honest, but 'The Blueprint 2' is probably his best and there have been some proper bangers along the way.