Demi Lovato has promised her new album isn't "too grown-up" for her fans to enjoy.

The 'Skyscraper' singer's record 'Unbroken' - her first following a stint in rehab for "emotional and physical issues" - does reflect a more mature sound bit Demi insists her fans don't need to worry.

She explained to MTV News: "I think it's grown-up, but it's not too grown-up. It's not tasteless. It's growing up with my fans. It's [like] I'm not a kid anymore, but I'm also not a full-grown woman either. So I'm in that in-between stage, trying to figure out where that is. So I'm figuring it out, just like my fans are."

Demi has moved away from her pop/rock Roots on her latest release, citing her new sound as "more R&B", however, she hasn't ruled out doing a country album in the future.

She said: "This album is definitely more pop. It's definitely more R&B. It's not so pop/rock anymore. I grew up listening to R&B, [and] I guess my rock thing was kind of like a phase.

"I like to experiment with my music. Someday, I joke around, but I'm actually pretty serious about coming out with a country album. I want to do everything. I love music and I love all types of music, and I love where this album went."