Ludacris (born September 11, 1977) is an American rapper. A cousin of R&B singer Monica, Ludacris has received three Grammy Awards over the course of his career. He is the co-founder, along with his manager, Chaka Zulu, of Disturbing tha Peace, an imprint distributed by Def Jam Recordings. Ludacris is tied with Nelly for the title of the hip-hop solo artist with the second most Billboard Hot 100 number-one hits (four each). He has sold more than 13 million records in the US alone.