The Rapper: Busta Rhymes
When He Got Booed: At Funkmaster Flex's "Hip Hop Legends 2" show in New York City in June 2009
Why It Happened: After thanking Flex for putting the event together, he started shouting out artists like Kid Cudi and Kanye West. And, that didn't sit too well with the crowd that had gathered to celebrate legends. So, Busta quickly started shouting out more old heads to regain control.