Now, she's channeling her emotions into her music.
"I get very, very honest about the passing of my dad," she said in the Sept. 1 interview. "My fans expect me to be honest, [but] what I think that people in general aren't going to expect is the way that I sing the song. I took it more to a soulful, gospel kind of sound, and it's the song that I think I might be most proud of on the album."
Lovato's new album, Confident, is due out this October. Last week, the 23-year-old unveiled the super sexy album cover, in which she strikes a pose in black panties and a skin-tight, shiny black top.
"The album is called 'Confident,'" she told ET on the red carpet at the MTV Video Music Awards. "And I wanted something that was going to best represent the album title, where I'm at today and the music."