SpongeBob SquarePants is undoubtedly one of the most lovable and recognizable characters in the history of animation. The show has left its mark on kids, teens, and adults with its wacky scenarios and charming characters. Whether an adult or a teenager or a toddler, the show and the character is loved by one and all. Of all the characters in the show, the most popular is often said to be SpongeBob and Patrick Star.

As this lovable character turns 21, we bring you 21 facts about SpongeBob you didn't know about.