Emma transforms into Rarity from the doll line My Little Pony Equestria Girls!
About My Little Pony from Wikipedia:
My Little Pony is an entertainment franchise developed by Hasbro, originally as a toy line for girls. The first toys were developed by Bonnie Zacherle, Charles Muenchinger, and Steve D'Aguanno, and were produced in 1981. The ponies feature colorful bodies, manes and a unique symbol on one or both sides of their flanks. These are referred to in the two most recent incarnations as
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