Bailey has twoBellossom namedBelle (Japanese:レイRei) andBella (Japanese:ハナHana) who she uses to perform acrobatic dances. They first appeared training with Bailey in preparation for the upcomingFlorandoPokémon Exhibition, attracting a huge audience includingAsh andhis friends. Bailey told them to do a "Bell-oop-de-loop", but something went wrong and Bella came crashing down on Ash. It was then revealed that the Bellossom used to be able to perform the trick, but Bella was in a bit of a slump and couldn't quite get the hang of the "Bell-oop-de-loop", making it sad. Then, in abattle withTeam Rocket, they were able to perform their moves to dodgeArbok andVictreebel and put them tosleep with Sleep Powder. Later, they helped teachPikachu andTogepi dance moves. It was then revealed that Belle and Bella used to battle, but preferred to dance.

Later, they were captured along with other performer's Pokémon by Team Rocket, but Pikachu was able to get them back down to the ground. After Belle and Bella were free, they performed a successful "Bell-oop-de-loop" and sent Team Rocket blasting off with 'Tornado Twister'. At the Pokémon Exhibition, Belle and Bella performed another successful "Bell-oop-de-loop" and got a standing ovation.

Belle and Bella's only known move isSleep Powder.