The Triplets
The Triplets and The Magical Bagpipe
S7 E3:
The Triplets find themselves in a palace where no one is allowed to laugh until the sad Princess Amalia laughs. Her father, the king, declares that he will give her hand in marriage to whomever is able to make her laugh, and he begins to receive the various suitors. Thanks to the three girls, a man named Pessoa manages to get hold of the Magical Bagpipe.