Miley Cyrus Caught Smoking Cigarettes: Who's the Worst Celebrity Role Model?

Miley, Miley, Miley.

We were willing to look past the pole dancing, the salvia, the underage drinking and the tattoos, but smoking cigarettes is just bad news. Especially when you're a teenage role model.

Cyrus, 18, was photographed lighting up several cigarettes in Michigan on Monday as she spent the day with her boyfriend, 21-year-old Liam Hemsworth, according to The Daily Mail.

This is in spite of the fact that she vowed to "never smoke" in her 2009 autobiography "Miles to Go."

SODAHEAD SLIDESHOW: See the worst celebrity role models. 

"I always say that for me, smoking would be like smashing my guitar and expecting it to play. I'd never do that to my voice, not to mention the rest of my body," she wrote.

But Miley has competition in the setting-a-bad-influence department from 23-year-old Rihanna, who recently made headlines (and upset fans) by Tweeting that she starved herself before her Esquire cover shoot.

From Miley to Rihanna to Lady Gaga, let us know: Who's the worst celebrity role model?