has become its official English slogan. is a song written by John Siegler and John Loeffler and performed by Jason Paige.It was the theme song for the first season of the English adaptation of the Pokémon anime.Since its release, the song has been virtually synonymous with the Pokémon franchise because the line "Gotta catch ém all!" Aim to Be a Pokémon Master (Japanese: めざせポケモンマスター Mezase Pokémon Master) is the first opening theme of the original series, with a cover by Whiteberry being the fourth. "Pokémon Theme" (also known as "Gotta catch ém all!") This is a list of Pokémon theme songs that includes the media and release information, which is mainly about the English opening songs were used as ending credit songs, one English ending song, Korean and Japanese opening and ending songs of the Pokémon animated series.They are as follows. An arrangement made to commemorate the anime's 20th anniversary replaced Alola!! as the second Japanese opening theme of Pokémon the Series: Sun & Moon.. A verse from this song was featured …