The Science Times was killing it today, including a Q&A about how and why songs and jingles get stuck in our heads.
C. Clairborne Ray cites studies by consumer psychologist James J. Kellaris investigating the nature of so-called “earworms.” Basically, it seems like no one really knows what causes them, though the Times piece presents a couple of reasonable suggestions.
It concludes:
After further research, Dr. Kellaris theorized that one way to scratch what he called a “cognitive itch” is to sing the mental tune aloud.
That sometimes works. But there’s one downright foolproof way to get any song out of your head. Seriously, it’s 100% effective:
Start singing Chumbawumba’s “Tubthumping.”
I get knocked down, but I get up again…
By the time you get to the “pissin’ the night away,” part, I guarantee you’ll forget all about whatever earworm was pestering you beforehand.
As for getting Tubthumping out of your head, well, you’re own your own, brother.
He drinks a whiskey drink, he drinks a vodka drink…
I wholeheartedly apologize for what I imagine I’ve just done to you.
Tedquarters 
reminds me of that Simpsons episode when Bart’s Bolivian tree lizards kill all the pigeons in town, but in order to kill the infestation of lizards they’ll have to send in Chinese needle snakes, then gorilla-eating snakes, then just wait for winter for the gorillas to freeze to death….