Back in July, Jay Z rapped for 6 hours at a gallery while being filmed. Actually he lip-synced for 6 hours.
In any case, the fruits of labor finally premiered on HBO as a 10 minute performance art movie called Picasso Baby. You can watch it above.
Actually, you really should watch it. If only for the old white people giggling like school girls while this urban guy raps at them and the appearance by Rosie Perez.