SpongeBob SquarePants

SpongeBob SquarePants made a cameo appearance in the SpongeBob Movie Rap Battle.

Information on the cameo
SpongeBob SquarePants is the title character and protagonist of the American animated television series of the same name. He is voiced by actor and comedian Tom Kenny and first appeared on television in the series' pilot episode "Help Wanted" on May 1, 1999.

SpongeBob was created and designed by cartoonist and educator Stephen Hillenburg, who began developing the show shortly after the cancellation of Rocko's Modern Life in 1996. Hillenburg intended to create a series about an over-optimistic sea sponge living in an underwater town. Hillenburg compared the character's personality to Laurel and Hardy and Pee-wee Herman. As he drew the character, he decided that a "squeaky-clean square" like a kitchen sponge fit the concept. The character's name is derived from "Bob the Sponge", the host of Hillenburg's comic strip The Intertidal Zone that he originally drew in the 1980s while teaching marine biology to visitors of the Ocean Institute. SpongeBob is a naïve and goofy sponge who works as a fry cook at the Krusty Krab.

Appearance in the rap battle
SpongeBob appears in his opening title sequence on a television set during Bubbles's line "That song's so bad that I can't even stand it!"

Trivia

 * SpongeBob is the fourth animated character to appear in a rap battle after ED-209,  the sarlacc and the Lego Minifigures in Zeus vs Thor.
 * SpongeBob is the first cameo to appear in an unofficial rap battle.
 * He is the fourth cameo to appear on a television set, after Mister Rogers, Billy Mays and the Fourth Doctor in Bob Ross vs Pablo Picasso.