The 'Fighter' singer will join Green, Adam Levine and Blake Shelton as celebrity mentors on the upcoming show which judges hopefuls purely on vocal talent.
"Cee Lo and I have been trying to work together for a really long time so hopefully something will work out," she told reporters on a recent conference call.The star also teased what viewers could expect from the special performance from all four celebrity mentors on the opening episode of the NBC show.
"It was interesting and fun," she said. "Adam was playing the drums and it was like a fun jam session between four artists and musicians."
Executive producer Mark Burnett added that his "jaw dropped" when he saw the collaboration, saying: "[Host] Carson Daly said, 'Ladies and gentlemen, that's how it is supposed to sound. It really sets the standard for this show'."
The Voice features a "blind audition" format that means aspiring stars will audition behind the mentors' backs so they are judged purely on their talent rather than other factors like appearance.
If a mentor likes what they hear, they can press a button that will bring the auditionee into view and indicate that they want to work with them, but if more than one mentor likes a performance, then it's up to the contestant to decide who they want to work with.
The Voice premieres Tuesday, April 26 at 9/8c on NBC.