For Whom the Sweetie Belle Toils

For Whom the Sweetie Bells Toils is an upcoming episode of My Little Pony Friendship is Magic. It is produced as the ninteenth episode of the fourth season, and the eighty-fourth episode overall. The title is a reference to the Ernest Hemmingway novel For Whom the Bell Tolls.

Summary from Zap2it
"Sweetie Belle ruins a costume for one of Rarity's clients on purpose; Luna visits her in her dreams."