... because they get stuck in your head and no matter what you do, it will haunt you. The resistance is futile types of songs.

Like this one.



This is the hardest "try not to sing and fangirl challenge"... everrrr
I hate Britney, she owns me



Oh god no. I can flawlessly rap and sing the lyrics if you wake me up at 3:40 AM



Once I heard them sing "I'm the biggest hit", it was over. IT WAS OVER. That bizarre beat does not help. It's too catchy.