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Demi Lovato: 'Selena Gomez and Kim Kardashian mean the world to me'

Singer/actress Demi Lovato has publicly thanked her good friends Selena Gomez and Kim Kardashian for their unwavering support during her stint in rehab.

The Skyscraper star enrolled in a treatment programme last year (Oct10) to battle a number of personal problems, including an eating disorder, depression and self-harming, but she has since bounced back and recently declared she is happier and healthier than ever.

But Demi Lovato insists she wouldn't have made such a quick recovery if it hadn't been for her two closest pals.

She tells Billboard.com, "I feel like there are some people that you're friends with that talk to you on Twitter or you text, but the people that are really there for me are the people that were there for me when I went into treatment.

"The people that were calling me while I was in there were Kim Kardashian and Selena Gomez. Those two girls, they meant the world to me. They still do."

Demi Lovato, who attended Kim Kardashian's August (11) wedding to Kris Humphries, adds that the reality TV star has been "like a big sister" to her.