(Cover) - EN Showbiz - Demi Lovato wants her music "to do the explaining" about her recent struggles.

The 19-year-old star recently released her third studio album Unbroken. She began working on the record in July 2010, prior to entering a rehab facility for "emotional and physical issues."

When she first recorded her current single, Skyscraper, she was battling an eating disorder, which ultimately damaged her vocal cords.

After completing her treatment, Demi rerecorded the single, but ended up choosing the original version on her album. The former Disney star felt inspired to use the rawer version of her music to explain how she was feeling at the time.

"My voice is different now, but there just wasn't that same spark," she explained in an interview with the LA Times.

"I wanted to come out of the gate with this song, because a lot of people were expecting me to talk about what I've been through the past year. I want my music to do the explaining."

Demi has spoken of her struggles at the time. The star says even her team were unable to spot a problem initially.

"I had learned how to control and manipulate everyone around me into believing that I was OK," she recalled. "I'd go to work on my TV show and, instead of getting lunch, I would go get my nails done or go tan or nap or something.... No one was grilling me."

Unbroken is emotionally charged throughout. One song, titled For the Love of a Daughter sees a four-year-old Demi pleading with her father to "put the bottle down".

The songstress is glad she can tackle such deep lyrics now, without worrying about her young Disney fans.

"A few years ago, when I was with the Disney Channel, I didn't want parents having to explain to their children the depth of the lyrics," she said. (C) Cover Media