SpongeBob SquarePants first aired on Nickelodeon in 1999 and quickly became one of the channel's most recognisable cartoons. Its closing credits have played at the end of episodes throughout the show's long run, making the tune familiar to several generations of viewers who grew up with SpongeBob, Patrick and Squidward in Bikini Bottom. Online, the music is now reused as a ready-made outro, especially in memes and short videos where a recognisable cartoon ending adds humour and nostalgia without needing any explanation.