From Bulbapedia, the community-driven Pokémon encyclopedia.
Fiorella Cappuccino (Japanese: タクヤ Takuya) is a character of the day who appeared in Princess vs. Princess. In the English dub, he seems to be a reference to American actor Fabio Lanzoni, being given an exaggerated Italian accent; in the Japanese version, he seems to be a reference to Japanese pop singer Kimura Takuya (stage name Kimutaku) of the band SMAP.
In the English dub, Cappuccino is a famous movie star; one of the movies he stars in was called "Gigantic".
During the Princess Festival in O-Hina Town, he served as the commentator of the Queen of the Princess Festival. The prize for the winner of the competition was a Pokémon Princess Doll Set and a photo with Cappuccino. Many of the participants in the festival, with the exception of Misty and Jessie, were thrilled at the chance to meet him.
Ash and Brock both failed to see why Cappuccino was so popular among his female fans.