In the video clip, Demi Lovato talks about her eating disorder that started when childhood bullies called her fat. Lovato says she’s always been an advocate against bullying, but now she can share her personal story.

Demi explains that the bullying caused depression, saying it “was really dark” and her only way of coping “was through my eating disorder” and the urges to cut herself.

Lovato also talks about the shock of being in the treatment facility and finding out she was bi-polar.

Demi also said her sister Madison, who stars on Desperate Housewives, got her through treatment and on the road to recovery because she told herself “set this example for your little sister.”

In People magazine, Demi Lovato explains her eating disorder – skipping meals, taking laxatives and throwing up: “When I was 15, I was only eating a meal a day … When I was about 15, I was only eating two meals a week, but I wasn’t losing any more weight because my body adjusted to that. So I tried new things: laxatives, fasts — nothing was working. I decided maybe I should start throwing up. At my worst, I was doing it five times a day. I threw up so hard and so much, it was just blood in the toilet.”

Demi Lovato also talks about reconnecting with best friend Selena Gomez: “Selena [Gomez] and I reconnected the first week. We hadn’t spoken in a long time. I take the blame; I feel like it was because of the way I’d been acting. She called me and she was the one crying.”

Yesterday, Demi Lovato announced she was leaving Sonny with a Chance to focus on her music career – she says she’s about to start working on her third album.

How is Demi Lovato doing since rehab? She says, “I’m taking life day by day.”

Lovato explains her eating issues and battle with cutting, which started with childhood bullying – she said she was bullied because she was fat and developed an eating disorder.

Demi also talks about physically hitting a backup dancer last year, saying she takes “100% full responsibility” for the incident.

After that, Demi Lovato’s family and management team had an intervention to get her into rehab treatment.

More of the Demi Lovato GMA interview will air tomorrow, April 21, as well as on 20/20 on Friday.

Lovato explains that she’ll be leaving Sonny with a Chance to explore her music career: “It made sense for me to go ahead and leave the show to focus on my music,” Lovato told People magazine. “It’s kind of sad for me that a chapter of my life has ended but there couldn’t be a better time for me to move on.”

Lovato continues, “I don’t think going back to Sonny would be healthy for my recovery. Being in front of a camera would make me nervous.”

Aww… no more Sicky Vicky (video)!

Disney Channel released this statement: “We respect Demi’s decision to focus fulltime on her music and not immediately return to her acting career. She is a talented young woman and our hearts are with her as she continues to take action to improve her health and bounce back from adversity.”

Sonny with a Chance will take on a name change – “So Random!” – and be more of a sketch comedy series. Look for its debut in June.

“I basically had a nervous breakdown,” Demi Lovato shares. “I was really bad off. My parents and my manager pulled me aside and said, ‘You need to get some help.’ It was an intervention.”

Yes, Demi Lovato also had an eating disorder, she tells Seventeen, and body image struggles her whole life.

Demi Lovato is partnering with Seventeen and the Jed Foundation for the “Love is Louder Than The Pressure to Be Perfect” campaign to help girls deal with self-esteem issues.

Demi Lovato will regularly contribue to Seventeen, explaining, “It’s very crucial that you get your feelings out, but don’t ever inflict harm on your own body because your body is so sacred. If you are going through that dark period, go to your family and closest friends. Don’t put yourself in danger.”

“The journey that I went through and the support of my fans was so meaningful to me that I wanted to thank my fans in a way that I know can never be forgotten. So I went ahead and I got a little heart tattoo on my wrist.”

Lovato added, “It’s something that my fans were actually drawing on their wrists while I was still in treatment. Some people even got tattoos of it, so I wanted to show you guys that I will never forget the support that you guys gave me. I will look at it every day and remember you guys and be completely thankful for you.”

Demi Lovato doesn’t talk much about what she went to rehab for, but is thankful to fans for their support: “I wouldn’t be here today if it wasn’t for the support you guys have given me along the way…Your support is what got me through this.”

Lovato adds, “I can’t tell you how much light you guys brought into my life in probably the darkest time of my life. Without you guys, I wouldn’t be here today.”

The short clip of Demi Lovato’s “Shut Up and Love Me” was leaked online yesterday – it’s unclear whether the track will land on her next album or not.

Sexy Demi Lovato pictures have leaked online – Demi Lovato bra and cleavage pics are bringing the once squeaky clean Disney star back into the spotlight, just as the buzz about her rehab stint had started to fade.

In the sexy new pics online, Demi Lovato is seen with a group of back up dancers, pulling her top down to reveal her bra and cleavage, as one girl gives Demi’s boobs a stare down. The red-head in the pic is the girl that Demi Lovato punched, Alex Welch.

In another picture, Demi is again pulling her top down, but also licking the face of another girl.

Two other sets of sexy Demi Lovato pics show Lovato in a series of shots in her bra and underwear.

Who leaked the racy Demi Lovato pics online? Did beat up backup dancer Alex Welch leak the sexy Demi Lovato bra pics for revenge?

Sterling Knight says of Demi Lovato: “She’s doing well. She’s in good spirits. I didn’t want to bother her too much because I want her to get her rest. I know she’s been overworked for a long time. I’m hoping she stays strong and gets through it.”

Knight added that he thinks Demi Lovato’s decision to get help now was a wise choice: “You’d rather nip it in the bud sooner than later. I know she’s been real busy—almost entirely too busy for any human being, let along a 17-year-old girl. It’s nice that she’s handling her stuff.”