Up next:
414: Filli Vanilli - When a member of the singing group, the Ponytones, has to drop out of an important performance, Fluttershy takes drastic measures to ensure that the show goes on. (Song) (Amy Keating Rogers)

The week after:
415: Twilight Time - The Cutie Mark Crusaders are thrilled when Twilight offers to help them with their studies. However, problems arise when the girls realize they can use their relationship with Twilight to increase their popularity. (Dave Polsky)

The last song for awhile (421 should be in April) , and an episode that has a non-zero chance of turning up another key. Though if it's Twilight's, that sort of implies that she'll have a revelation about friendship and teach it to the CMC and/or others. Would her rainbow object be a book? And maybe some Sweetie Belle will practice some magic? Or maybe it's just some help with that formula that's always on the board at school. Not surprised that Twilight's helping them, though; that homework's gotta be brutal.

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