Question: including collaborations which rapper has the most number one singles?
Answer: Nelly – 6 number-one singles. ...  Ice Cube – 6 number-one singles. ...  T.I. – 7 number-one singles. ...  Bow Wow – 7 number-one singles. ...  50 Cent – 7 number-one singles. ...  Kanye West – 9 number-one singles. ...  Lil' Wayne – 11 number-one singles. ...  Drake – 21 number-one singles.