LIL B is 35 years and 1 month(s) old. He was born in 17 Aug, 1989. Brandon McCartney or rather famously known by Lil B is an American rapper, who is generally famous for being brutally honest and bold with his opinions and also, for active interacting with fans on social networks taking his publicity further up. He has also been known as the Based God and rumors have floated around every now and then about his supposed girlfriend and relationship status.