Episode 147
On their way to the Battle Arena, Ash and friends arrive in a Ghost Town where they are a group of Ghost Pokémon scaring anyone who comes by. After being scared, they find a group of Psychic Pokémon, who after being abandoned, have been playing loud music all day and night. While Ash and friends try to cheer up the Psychic Pokémon, Team Rocket team-up with the Ghost Pokémon and try to stop the Psychic Pokémon for good!
Aired 06/10/2005EP 147 - Episode 147
Pokémon the Series: Ruby and Sapphire
After participating in the Johto League, Ash decides to begin anew in yet another journey; this time by himself and Pikachu, in the land of Hoenn. Though he isn't alone for long, as 10-year-old May (who dislikes Pokemon, but just wants to come along to see the world) travels with him after Pikachu destroys her bicycle. Ash also meets up with his old companion, Brock, and May's younger brother, Max. Together, they travel along in Hoenn, battling Gym Leaders, entering Contests, and other events on the way to the Hoenn League.
(Source: Anime News Network)