DJ Premier, American DJ and producer

Christopher Edward Martin, known professionally as DJ Premier, is an American record producer and DJ. He has been frequently lauded as one of hip hop's greatest producers by publications such as Vibe. He formed the hip hop duo Gang Starr alongside American rapper Guru, with whom he has released seven albums. He formed another hip hop duo, PRhyme—with American rapper Royce da 5'9"—in 2014, with whom he has released two albums.

March 21 is the 80th day of the year in the Gregorian calendar; 285 days remain until the end of the year.