The works of Jean-Michel Basquiat are currently showing at the Gagosian Gallery. Definitely worth checking out if you're in the Downtown NYC area between now and April. The show's running for that long a while and it's a sizable gallery with lots of his original work to see for FREE!
SAMO was JMB's graffiti tag and Downtown 81 was a film he starred in back in the day.
Basquiat died in 1988 in NYC at the age of 28.
Here's the gallery info link: