The guest list for Kesha's upcoming rock-influenced 'Warrior' album is starting to take shape, with NME reporting that the record will feature Nate Ruess of fun., drummer Patrick Carney of the Black Keys, vocalist Wayne Coyne of the Flaming Lips, Ben Folds, Iggy Pop and more.

Among the other collaborators on the project are will.i.am, Bonnie McKee, and producers Max Martin and Greg Kurstin. It's unknown whether the rumors about a Rihanna collaboration are true, as the track list Kesha released for 'Warrior' doesn't specify who appears on which songs.

"I've been working for a year on this new record and have collaborated with some of my idols," Kesha said. "This process has been long and intense and I couldn't be more stoked to share this music. I hope with 'Warrior' my fans get to know me in a much more raw and vulnerable way."

Producer Dr. Luke has said the album will contain fewer studio tricks and more of her real singing without Auto-Tune. He adds, "You’re going to hear an artist that’s grown and is evolving, but it’s Kesha. She’s no choir girl yet."

The first single, 'Die Young,' officially arrives next Tuesday, Sept. 25, while the album follows on Dec. 4.

Watch Kesha Singing 'Die Young' on the Tokyo Subway