The All I Wanna Do singer will help contestants perfect their performances on the show when the new season begins on 25 March (13).
Announcing the news to U.S. show Entertainment Tonight, Crow says, "I've been friends with Blake for a few years now and am honoured he invited me to be an adviser on The Voice this season."
Shelton adds, "Sheryl Crow is one of the coolest people in the music industry and to have her as an adviser on my team is pretty darn cool."
Kelly Clarkson, Reba MCEntire and Shelton's wife Miranda Lambert have previously served as mentors for Shelton and his team.
The new season of The Voice will be the first for new judges Shakira and Usher, who will be joined by original stars Shelton and Adam Levine.
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