Mary J Blige/Sam Smith and Beck/Chris Martin Among Many New Duets Added to Sunday's GRAMMYsOther newly announced collaborations include Brandy Clark with Dwight Yoakam, Ed Sheeran with Herbie Hancock, Questlove and John Mayer, and also Sheeran with ELO's Jeff Lynne.
Hunter Hayes: GRAMMY® Winners Playlist

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