Katy Perry is more known for her bubbly, uplifting hits such as "California Gurls", "Firework" and "Roar", but when looking back, does Katy Perry have some of the 'darkest' singles released this decade out of any of the pop girls?
Please don't refer to album tracks or singles before 2010 if you think someone else has more.
Gaga, Rih and Bey all have much darker material. I can't gather from your sentence whether you're saying dont refer to album tracks at all or don't refer to album tracks before 2010?
I wouldn't let small children listen to her
