Demi Lovato Doesn't Blame Joe Jonas for Meltdown

6. Demi Lovato (3.89% of the vote)

As she rides high on the success of her single, "Skyscraper," former Disney kid Demi Lovato has opened up about the health and personal problems that led to her public meltdown in 2010. For starters, the "Camp Rock" singer-actress insists that while her breakup with Joe Jonas hit her hard, it didn't drive her to rehab.

"I wouldn't credit my meltdown to a guy," Lovato, 19, tells Elle magazine in a new interview. "There was so much other stuff in my life."

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That "stuff" included a disastrous tour with the Jonas Brothers that earned her the nickname of "Demi Drama" and included stories of bad behavior and fighting. "I was completely out of line all summer," she now says. "Just the worst attitude -- totally ungrateful."

She knew she had turned the wrong corner when she punched her backup dancer, Alex Welch, in the face while on a flight to Peru, because, "I just felt like she'd betrayed me."

"When you punch someone on a plane, enough is enough," she says. "Right after, I texted my mom and just said, 'I'm sorry.'"

She entered rehab in October to address "emotional and physical issues," and stayed until January. A lawsuit brought on by Welch was reportedly settled in December.

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Lovato's struggle with anorexia and bulimia began at age 9 and she started cutting herself at 11. The media went berserk in 2008 when she was spotted at a party with scab marks on her wrists. The excuse, given by a now-departed PR rep, was that the marks were caused by gummy bracelets. She says she had no choice but to keep the cutting to herself.

"I don't think I would have been ready to talk about [my problems] then, but I could've come up with something better than gummy bracelets," she now says. "Needless to say, that publicist is no longer with us … I mean, she's alive."

These days, Lovato is healthy and focused on her new (untitled) album, out Sept. 20 on Hollywood Records. "Skyscraper," her somber first single off the album, gave Lovato her highest career debut on the Hot 100 when it entered at No. 10. It currently sits at 80.