Rica Matsumoto (松本梨香) is a seiyuu (voice actor) and singer from Yokohama, Japan. She is best known for her role as Satoshi (Ash) in Pokemon. She performed many of the opening themes for the series, including "Mezase Pokémon Master," "Rivals," "OK!," "Challenger!!", "Spurt!" and "Best Wishes!". Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.