Team America: World Police. Now I get to hear the AIDS song and “America, Fuck Yeah” in my head at least once every day for the rest of my life. It’s changed my mind about the concept of entertainment being so crap that it’s actual brain poison that the wise will avoid, which I thought was just old stick-in-the-mud folks being old. But no, it’s real. Be careful what you expose your brain to.
Bonus round: the wiener-modified Game of Thrones theme from an episode of South Park. Those guys are uniquely good at writing ear worms I wish I’d never heard.