Demi Lovato spent most of last year out of the limelight because of personal issues. While many celebrities were supportive of her leave and even more supportive upon her comeback, the star reveals that only two actually called her while in treatment--Kim Kardashian and Selena Gomez.

The Disney singer was reported to have been battling with her recent break-up with singer Joe Jonas, pressure from the media, and an eating disorder she had been struggling with for approximately six years. When Lovato allegedly punched a backup singer from her Camp Rock 2: The Final Jam tour, friends and family knew it was time to get the singer help. She spent some time in rehab to work on those issues privately.

Demi Lovato's single Skyscraper has been an encouragement to all people. BFF, Gomez, even tweeted: SO, SO proud of Demi Lovato, Skyscraper. Incredible, beautiful and so inspiring. The empowering ballad is truly moving.

Beyond the words you can sense a transparent, vulnerable, and fragile Lovato expressing her heart especially during the chorus-- You can take everything I have/ You can break everything I am/ Like I'm made of glass, like I'm made of paper/ Go on and try and tear me down/ I will be rising from the ground like a skyscraper.

This song is so special to me because it's inspired by my journey and the struggles that I've dealt with this past year, Lovato said in a recent interview with seventeen.com. I hope people are able to relate to it and realize that they are able to rise above and overcome any obstacle, no matter the circumstances, and shine like a skyscraper.

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,Lovato explained to Billboard.

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.

Ryan Tedder of OneRepublic who collaborated on a track with Lovato claimed that her comeback album, Unbroken, will shock everybody. Demi blew me out of the water vocally! He said at  the Do Something awards. I had no idea how good her voice is. She's one of the best singers I've ever worked with. Literally, that good...I mean, she's a Kelly Clarkson-level vocalist. And Kelly has a set of pipes.

Demi Lovato. She's perfect on so many levels. Her hope. Her strength. Her passion. And her song Skyscraper? Breathtaking, a fan wrote on twitter. Demi Lovato is a hero. She speaks for so many, another fan wrote.

Fans are very excited that Lovato has a bright outlook on life and is not allowing anything to hold her down. Her comeback is off and running to a great start!

I am still on a personal journey dealing with my own issues each and every day, but the best advice I can give to anyone going through a rough patch is to never be afraid to ask for help.