13. Katy Perry

Yet another story of a great voice getting poisoned by cigarettes comes to us from Katy Perry. She might have started her singing career as an innocent gospel singer, but nowadays she’s seen as the controversial celeb with a nasty smoking habit.

Although the singer is at the top of the charts by showing the true power of her voice in songs like “Roar,” it’s only a matter of time before her voice takes a turn for the worse due her smoking habit.

Katy Perry is known for being funny, smart, talented, and full of unique ideas, so we hope she quits smoking soon so that her roar remains as powerful as it is now.