From Bulbapedia, the community-driven Pokémon encyclopedia.
Fiorello Cappucino (Japanese: タクヤ Takuya) is a character of the day of the Pokémon anime. He seems to be a reference to Fabio Lanzoni.
Cappucino is a famous movie star in the anime. One of the movies he stars in is called "Gigantic". The winner of the Princess Day festival in Princess vs. Princess also won the chance to meet Cappucino. 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 Cappucino was so popular among his female fans.