Demi Lovato is looking absolutely gorgeous in the latest issue of Elle magazine. Love the Louboutins!

The "Skyscraper" singer is opening up about her November 2010 meltdown and clearing up rumors that her split from Joe Jonas caused her very public downward spiral.

Demi tells the mag:

    "I wouldn't credit my meltdown to a guy. There was so much other stuff in my life."

The Disney starlet checked into rehab late last year for an eating disorder. Lovato, who was bullied for her weight, admits that she began overeating at the age of 8.

As for that physical fight she had with back-up dancer Alex Welch on a flight from Colombia, Demi adds:

    "I was completely out of line all summer. Just the worst attitude -- totally ungrateful. I just felt like [Welch] had betrayed me. When you punch someone on a plane, enough is enough."

Way to come clean! Read what Demi said about the red marks that were on her wrists back in 2008 and how her handlers tried to cover it up ... after the jump.