Willow Smith is a person.
Willard Carroll Smith Jr. ( born September 15 , 1968 ) is an American actor , producer , rapper , and songwriter . Willow Smith . Smith launched her music career in the autumn of 2010 with the release of the singles `` Whip My Hair '' and `` 21st Century Girl '' , and signed to her current mentor Jay-Z 's record label Roc Nation , becoming the youngest artist signed to the label .