Sean John Combs (born November 4, 1969) is an American entertainment mogul, record producer, actor, singer, and rapper. In September 2006, his nickname and recording name is Diddy (adopted in August 2005); previously, he had been known as Puff Daddy, P. Diddy, Sean John, Puff, and Puffy.

Diddy presides over a media empire that includes the record label Bad Boy Records, the clothing lines Sean John and Sean by Sean Combs, a movie production company, and two restaurants. He has taken the roles of recording executive, producer of reality TV (such as MTV's 'Making the Band'), writer, arranger, clothing designer, and actor.

He was originally known as Puff Daddy and then as P. Diddy (Puff and Puffy being often used as a nickname, but never as recording names). In August 2005, he changed his stage name to simply "Diddy". He continues to use the name P. Diddy in New Zealand and the United Kingdom, the latter after a legal battle with another artist, Richard "Diddy" Dearlove.[2] In June 2008 Combs' representative denied rumors of another name change.[3]

His business interests under the umbrella of Bad Boy Entertainment Worldwide include Bad Boy Records, the clothing lines Sean John and Sean by Sean Combs, a movie production company, and two restaurants. He has taken the roles of recording executive, performer, producer of MTV's Making the Band, writer, arranger, clothing designer, and Broadway actor. Combs is one of the richest hip-hop performers, having a net worth estimated at US $346 million in 2006.[4] He is portrayed by Derek Luke in the biopic of The Notorious B.I.G. called Notorious.