"Drugs are for idiots and I'm never going to be that person," Cyrus said years ago, insisting that she "wasn't worried" she would "sound hypocritical at some point" because of the admission. Earlier this year, she extolled, "Weed is the best drug on earth," and said she tried but didn't like cocaine.
In 2009, she insisted, "I would never smoke. 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's since been photographed smoking cigarettes and marijuana many times, most recently on-stage at the EMAs.
Other self-contradictions have been more recent. In April, she insisted, "Sex does sell, but you have to find a way that's not just showing your tits." She's since gone topless -- and bottom-less -- in her video for "Wrecking Ball," and stripped down to her skivvies at the VMAs.
"I guess my idea of a good party is someone getting their face smashed in cake, not getting smashed," she wrote in her 2009 autobiography. "I don't drink …" Now, she hits up nightclubs with the likes of Lindsay Lohan and Paris Hilton.
Cyrus waffled again on her relationship in May when she said, she and Hemsworth "were too nice to the world and gave them too much insight into my life and my puppies and my house, and I just don't feel they get that privilege any more. Like on my Twitter … you don't see a picture of my dogs. You don't get that personal stuff any more." Shortly after, she continued posting tons of shots of her pups on Twitter and Instagram.
Cyrus complained of being typecast as "the white Nicki Minaj" in June, insisting "that's not what I'm trying to do." But the year before she did just that, dressing up as Minaj for Halloween.
After her VMA performance earlier this year, Cyrus said, "Now people expect me to come out and twerk with my tongue out all the time. I'll probably never do that sh*t again." But that's just what she did during her EMAs performance last week, as well as during several other recent appearances.
This week, Cyrus told BBC Radio 1, "by the way I'm super lame … I never leave my house because I'm a complete hermit." But in just the past few weeks, she's been spotted drinking alcohol in the backseat of a car with Benji Madden, being passed an alleged joint in Beacher's Madhouse nightclub in LA by Adam Lambert, and smoking in Amsterdam marijuana shop Greenhouse with Cara Delevingne.
When asked about One Direction in January 2013, Cyrus feigned disinterest, saying, "I mean, don't ask me to name a song or something because I can't do that. I know what they look like. I think I met Harry [Styles], I think, backstage. I don't really remember." But in January she had posted a photo to Twitter of herself cuddling a cardboard photo of Styles which she tagged with the singer's name.
In 2007, Cyrus thanked pal Hilary Duff "for making it cool to be a good girl and a good role model. That's something I look up to." This June, mothers group CouponCodes4u.com named her the worst role model in America because of her recent bad-girl behavior.