Pearl Krabs is Mr Krabs' daughter in SpongeBob SquarePants, the long running Nickelodeon cartoon created by Stephen Hillenburg. Songs written for Pearl usually play on the contrast between her teenage whale character and her father's cheap, dramatic personality, and this birthday clip has been lifted from the show for sharing online. Fans circulate it alongside other Bikini Bottom clips like the spongebob sad song and the My leg! Fish gag, using it as a ready made birthday greeting that needs no explanation for anyone who knows the series.