The official Japanese Pokémon Sun & Moon website has recently updated with the announcement that Taiiku Okazaki will be performing the ending theme song for the first Pokémon Sun & Moon anime season. The song will be called “Pose” and it will accompany the opening theme song “Alola!” performed by Satoshi’s (Ash) Japanese voice actor, Rica Matsumoto. The Pokémon Sun & Moon anime season will premiere in Japan on November 18.
Source: ANN, Official Pokémon Sun & Moon Website