Celebrity art collectors, and rapper art collectors in particular, are nothing new. P. Diddy went public in a significant way with his predilections in 2011 when he splashed for a pair of works at Art Basel in Miami Beach, where he has become something of a fixture. Jay-Z is rumored to be the rap music world’s biggest collector of works, with a hoard estimated in value at something around a half-billion dollars. Producer Swizz Beatz acquired an Ansel Adams photograph when still a teenager, and has a substantial collection. The megasale to P. Diddy, however, lays down a significant marker. Given the new attention being paid to African-American artists in the market, other eye-opening auction prices could follow.