Kōji Iwasawa is a Japanese pop rock artist that is part of the band Yuzu. His Instagram account is: @yujin_kitagawa

Comments on Mega Voltage Opening "GET BACK"
When I first got the news, I was very honored, but honestly also very surprised, wondering if Yuzu was really the right choice for this show. Just the fact that many of the earlier theme songs have been very "poppy", as well as emotionally aligned with the anime, made me think a lot about how well Yuzu would be able to align with the anime, as well as whether Pokémon anime fans would accept our song. Yuzu has filled this opening theme with as much respect for Pokémon as they possibly could, and I hope watching and listening to it will bring you a weekly dose of excitement.