Ten year old Willow Smith wants you to know she’s the life of the party. How do you follow up a smash like “Whip My Hair?” Um, hello? With a dance-floor friendly track, “Fireball,” featuring Nicki Minaj. Little Willow namechecks Obama, Nicki claims she’s Chun-Li from Streetfighter, and both Will and Jada are mentioned. Repetitive? Yes. Catchy? Absolutely.