Title: You're invited to Mary-Kate & Ashley's ballet party
Description: Mary-Kate and Ashley Olsen and their friends visit the New York City Ballet.
Subjects: Fiction, New York City Ballet, Ballet, Juvenile fiction, Parties in fiction, Ballet in fiction, Sisters in fiction, Twins, New York City Ballet in fiction, Parties, Sisters, Twins in fiction, Children's fiction, Ballet, fiction, Twins, fiction, Olsen twins (fictitious characters), fiction
Places: New York (N.Y.)