The Voice's four original coaches have apparently given their final joint performance.

Cee Lo Green has "dropped the bomb" and announced he will not be returning to NBC's The Voice as a coach -- ever.

"I'm going to continue my relationship with NBC. I have a television show development deal with them as well and hopefully some other talk show opportunities for later in the year. But yeah, I'm going to miss The Voice too. So I'm not coming back guys," Green, who's starred in four seasons of The Voice, said during a Wednesday appearance on The Ellen DeGeneres Show.

"I'm not coming back at all," the 39-year-old singer clarified.

"I don't want to wear out my welcome there, you know what I'm saying? I have so many other things that I want to do. I haven't released an album in four years. I'm almost done with my album, my music! You know?... It's very important to me."

Instead, Green will be joining artist Lionel Richie on his upcoming tour.

"He'll be with me, on the road!" Richie told talk show host Ellen DeGeneres.

"I've got my work cut out for me," Green noted. "This man is timeless."

Green starred on The Voice, which debuted in Spring 2011, for its first three seasons alongside fellow original coaches Christina Aguilera, Blake Shelton and Adam Levine

Green took a break in Season 4, when he was replaced by Usher, to concentrate on his music career. He then returned for the show's fifth season. Usher will fill Green's shoes again for the reality singing competition's sixth edition, which premieres next week on NBC.

Levine and Shelton have served as mainstay coaches since the beginning, while Aguilera and Shakira -- like Green and Usher -- have been taking turns on the panel in recent seasons.