I don't think there's an US/UK/JP equivalent, but when they aired Pokémon S1 in France, they added a 'pre-outro' with different short songs, they called it "Pikachu's Jukebox". Here's the best song
Vidéos: POKEMON - JUKEBOX de Pikachu
Pikachu's Jukebox by Flying-Raichu on DeviantArt
Pikachu's Jukebox - Together Forever by TeamProckyBen on DeviantArt
Pikachu's Jukebox - My Best Friends by TeamProckyBen on DeviantArt
Pikachu's Jukebox - Double Trouble by TeamProckyBen on DeviantArt
Pikachu's Jukebox - Bulbapedia, the community-driven Pokémon encyclopedia
Pikachu & Eevee Sing In The 80's | Pokemon Fan Fiction Wiki | Fandom
Remember Pikachu's Jukebox?? | Pop Culture Uncovered