The thing they saying is that everyone likes at least a song of an artist they hate and listen to that song, which isn't true seeing as I don't use any perry song nor have it on my laptop nor ipod.
The same could be applied to other artists. And just as you don't use Katy, there ARE people who don't use 1 Rihanna song. She is not this universal person ya'll ignorantly claim she is.
Soulless. If not something like Vision of Love, Fantasy, Always Be My Baby, Honey, My All, or We Belong Together, then I'd expect you to at least have bopped to Touch My Body or Obsessed, Sinny.