Pikachu

Pikachu is a fictional character from the Pokémon series.

History
Bart hallucinates during an exam after watching hours of satellite TV. One of his classmates turns into Pikachu and starts singing along with other TV characters, such as Bender.

During an episode of Pokémon that Bart watches, Ash Ketchum tells Pikachu to get the "Crystal Light Ball".

Behind the Laughter
Pikachu is a is one of the fictional species of Pokémon creatures from the Pokémon franchise.