With Demi Lovato's power ballad 'Skyscraper' marking her return to the pop music scene after a rough year which saw her publicly undergo a course of treatment, the singer is stoked for her legion of loyal fans to dig into the rest of her new meaty album 'Unbroken,' which lands Sept. 20.

The album sees Lovato partnering with Jason Derulo and Dev, but a song that really came from the '90s is 'All Night Long,' which features contributions from Missy Elliott and Timbaland, both of whom were massive in the hip-hop scene two decades ago! The song is a contrast to the emotional 'Skyscraper' in that it has a party vibe.

Lovato spoke to MTV about working with two titans, saying, "I was so stoked when I went into the studio. I was working with Timbaland, and Missy was there, and she was like, she heard one of the songs and she asked if she could rap on it." It took Lovato all of two seconds to offer her reply! She said, "And I was like, 'Of course, that's not even a question.' And she did, and she killed it."

Lovato is happy to explore both sides of the emotional spectrum on the album, especially with a fun track like 'All Night Long.' She said, "It's about staying up all night long and singing it to the boy that you like, and it's flirty and fun and it's not too grown-up, but it's grown-up enough."

We'll take it, Demi!

Watch Demi Lovato Talk About the Collab With Timbaland and Missy Elliott