Willow Smith is not an American citizen.
`` 21st Century Girl '' is the second single by American recording artist Willow Smith . Ardipithecus ( stylized as ARDIPITHECUS ) is the debut studio album by American singer Willow . Jaden Christopher Syre Smith ( born July 8 , 1998 ) is an American actor and rapper . Willow Camille Reign Smith ( born October 31 , 2000 ) , known professionally as Willow , is an American singer , actress and dancer . 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 .