Opening theme song (Movie and TV anime (Ep 30-43))
"Aim to Be a Pokémon Master -20th Anniversary-" (Japanese: めざせポケモンマスター -20th Anniversary-, Mezase Pokemon Masutā - To~uentīsu Anivu~āsarī -) is a song performed by Rica Matsumoto.
About the song
Unlike most songs, it was only available in a digital-only maxi-single release of the same name, which was released on June 27, 2017 under Sony Music's SME Records label. It was later included in the mini album of the same name on November 29, 2017.
It was the most recent cover version of the song "Aim to Be a Pokémon Master" (Also performed by Matsumoto) and is the opening theme song for the anime movie Pokémon the Movie 20: I Choose You! It was also used as the second opening theme song for the TV anime Pokémon the Series: Sun & Moon from episode 30 to episode 43 before the original opening theme song, "Alola!!", was re-uses from episode 44.