Eminem surreptitiously invites rappers of all blackgrounds to participate in a 'rap battle' but is actually a kick into a portal to Equestria. Drake is the only one who can save them.
Warning: Sparity. Spike learns of a motto from his teenage drake kin which bears a great deal of magical power. So great that all of the ponies either bow down to him or think he's an absolute moron.
NONE of Twilight's study methods work, not even when Twilight tried to take advantage of Rainbow's coordination skills. So Pinkie comes to save the day, but not without a little assistance from Lil Wayne himself.