"He's such an authentic voice in the industry. We could not be happier," executive producer Mark Burnett said of Chris' involvement. "There is a massive level of respect from the singers, and the surprise from them (when they met him): 'Whoa! Chris Martin. Wow!'"
CLICK ON PHOTOS TO ENLARGEChris will aid all of the show's contenders during the Battle Rounds: Round 2, which commences on 31 March. The new format will see the contestants paired up and asked to sing the same song seperately in a sudden-death match.
Chris "advised each of the Battles: Round Two performers on vocal techniques, stage presence and the importance of tailoring songs to fit their persona and strengths," NBC explained.
"These artists will continue to try and earn the support of their respective coaches, who will be forced to decide who will move on to the Playoff Rounds.
"Each coach will have the opportunity to strategically steal one more artist in this round."
As well as appearing in the 31 March episode, Chris will also feature on the NBC show on 1 April and 7 April.
Coldplay's official Twitter page confirmed the news, with a post that read, "Chris is to work with @adamlevine @blakeshelton @usher & @shakira as a Key Adviser on this season's US #TheVoice."
Season 6 of The Voice got underway on 24 February with Adam Levine and Blake Shelton both returning as coaches, and Usher and Shakira stepping in to replace Cee-Lo Green and Christina Aguilera.