Speaking of something relatively universal, in my experience Michael Jackson is it. I don't mean everybody likes him, I mean I've found very few people who actively hate his stuff. I swear I've been around the countriest of country-lovers who generally despise pop, R&B, you name it......I've been around heavy metal guys tatooed up their arms and back down their legs, punk guys who shot their necks out thrashing years ago.....and I swear, if I put on Billie Jean not ONE of those MFers through the years did anything but start bobbing their head to the rhythm of the drums. By the time the little synth line comes in their eyes are lighting up and they're humming along. Some of them just own it. Others look sheepish and try to play it off. But it's too late....I caught 'em. Probably doesn't go across age groups....anecdotally, this always happened with people relatively my age. But once I noticed it, sometimes I'd test it just to see if it would keep happening. It does.
Cue all the contrarians here to tell me how much they hate him/that song.