Grammys: John Mayer, Sia, Mary J. Blige, Beck & Many More Added to 2015 Performers

John Mayer performs at Pinkpop Festival
Greetsia Tent/WireImage

John Mayer performs at day one of Pinkpop Festival at Megaland on June 7, 2014 in Landgraaf, Netherlands. 

The Grammys announced a dozen new performers for Sunday's ceremony with a little game of guess the face:

How many could you pick out? We'll save you the work. Reading each row from left to right (and starting up top), that's Beck, Mary J. Blige, Juanes, Sia, John Mayer, Herbie Hancock, Chris Martin, Brandy Clark, Questlove, Jeff Lynne, Dwight Yoakam and Lang Lang.

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And what performances can we expect?

Beck, nominated for album of the year, will perform alongside Coldplay's Chris Martin. Mary J. Blige will duet with Sam Smith. Best new artist nominee Brandy Clark will perform with country legend Dwight Yoakam. Hancock, Mayer and Questlove will all be collaborating with Ed Sheeran. Sheeran will also perform with Sia and Electric Light Orchestra's Jeff Lynne.

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According to the Grammys' official site, famed pianist Lang Lang will "add his musicality to one of this year's most infectious songs" and Latin star Juanes will also perform an undisclosed song.

For a complete list of previously-announced 2015 Grammy performers (including Ariana Grande and Madonna) click here.