These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Americans Hate Tingle: Despite being a hit worldwide, the reception for "Gangnam Style" in Japan didn't set off massive hits, though it's fairly popular on Nico Nico Douga. It helps that Japan is used to K-pop, for the most part, and parodies (or anything that isn't squeaky-clean, mainstream k-pop) don't do as well as actual k-pop. (There was also yet another diplomatic incident between the two countries, which set off nationalist protests against anything Korean.)
For Western audiences, the pelvic-thrusting, manically grinning man in the elevator takes the cake. note It's South Korean comedian No Hongchu and the pelvic-thrusting is his trademark "jeojil (lewd) dance". It's incredibly funny for Korean viewers.
When PSY is on the toilet.
PSY in the jacuzzi as well.
Crazy Awesome: Who would've thought that such a crazy music video/artist would become so popular?
To say nothing of Shake It. Oh dear God, Shake It.
"Hangover" will not leave your mind.
Fridge Brilliance: "Gentleman" is already filled with PSY being a total jackass... but something Anglo-American audiences may not notice is that he's already being a jackass five seconds in- he's making people older than him carry all his shopping. A pretty big no-no in most Asian cultures (and others as well, though it's deathly serious in East Asia).
Hype Backlash: Probably inevitable, given the massive success of "Gangnam Style."
It's Popular, Now It Sucks: Even though Psy's "Gangnam Style" has gained more views than Justin Bieber's "Baby", he's already seen as one of the reasons why music and people's tastes suck nowadays. Ironically, Psy himself has stated his intention to "retire" Gangnam Style, saying that it's "too popular" now.
Love It or Hate It: Gangnam Style especially is either a instant favourite or will drive others nuts.