Pokémon the Series: Sun & Moon is the twentieth season of the Pokémon animated series and the first and titular season of Pokémon the Series: Sun & Moon, known in Japan as Pocket Monsters: Sun & Moon (ポケットモンスター サン&ムーン, Poketto Monsutā: San & Mūn). This season follows the continuing adventures of Ash Ketchum and Pikachu as they travel to the Alola region, go to Pokémon school with classmates (Lillie, Lana, Mallow, Kiawe, Sophocles), participate in the island trials, and learn how to use the power of Z-moves. The season originally aired in Japan from November 17, 2016, to September 21, 2017, on TV Tokyo,[1] and in the United States from May 12, 2017, to December 9, 2017, on Disney XD, making it the first Pokémon series to premiere on that channel. Prior to this, a preview of the first two episodes aired on the network on December 5, 2016. The Japanese opening songs are "Alola!!" (アローラ!!, Arōra!!) by Rika Matsumoto with Ikue Otani for 29 episodes, and "Aim to Be a Pokémon Master (20th Anniversary)" (めざせポケモンマスター (20th Anniversary), Mezase Pokémon Masutā (20th Anniversary)) by Rika Matsumoto for 14 episodes. The ending song is "Pose" (ポーズ, Pōzu) by Taiiku Okazaki, and the English opening song is "Under the Alolan Sun" by Jannel Candrice and The Sad Truth, featuring composer Ed Goldfarb. Its instrumental version serves as the ending theme.