() True friends are there in the best of times and the worst of times.

Demi Lovato has revealed that it took her 2010 rehab stint to make her realize who her true friends were.

The 20-year-old singer/actress says in a new interview that she had to deal with a hard truth about many of the people in her life after she was released from three months of treatment for cutting, an eating disorder, and a bi-polar disorder.

"A couple of months before I went to rehab, I had a birthday party and there were a couple of hundred people there. It was full of people who I considered my closest friends," she tells Britain's Company magazine. "When I turned my phone on after being in rehab for three months, I expected lots of text messages and phone calls. I had four texts. That was a wake up call."

Now, the former bestie of Selena Gomez says that her social circle is smaller.

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