Quick answer — Rica Matsumoto worked on Pokémon: To Be a Pokémon Master: Ultimate Journeys: The Series (Theme Song Performance), Pokémon the Series: Diamond and Pearl (Theme Song Performance), Pokémon the Series: Ruby and Sapphire (Theme Song Performance) and 7 more anime.
Rica Matsumoto worked on Pokémon: To Be a Pokémon Master: Ultimate Journeys: The Series (Theme Song Performance), Pokémon the Series: Diamond and Pearl (Theme Song Performance), Pokémon the Series: Ruby and Sapphire (Theme Song Performance), Pokémon the Series: Sun & Moon (Theme Song Performance), Pokémon: Mewtwo Returns (Theme Song Performance), Pokémon: Black & White (Theme Song Performance), Pokémon BW: Rival Destinies (Theme Song Performance), Pokémon BW: Adventures in Unova (Theme Song Performance) and 2 more.