40 Cal.

40 Cal.
Byrd in New York City in 2021
Background information
Birth name	Calvin Robert Byrd
Born	(1979-12-17) December 17, 1979 (age 44)
Origin	Manhattan, New York City, U.S.
Genres	Hip hop
Years active	2004–present
Labels	Diplomat (2004–present) Koch (2004-2007) Babygrande (2007–present) Cleopatra (2006–present) Interscope
Formerly of	The Diplomats

Calvin Alan Byrd (born December 17, 1979), professionally known by his stage name 40 Cal., is an American rapper. He was a member of Harlem-based hip-hop group The Diplomats.

Byrd made his first appearance on the self-titled theme song, "40 Cal" for the Dipset album Diplomatic Immunity 2. He took a part on MTV2's Fight Klub MC battles.^[1]