Levon Helm tribute will be part of Grammys
Elton John and Mumford and Sons will lead a tribute to Levon Helm at the Grammys on Sunday.
T Bone Burnett, Mavis Staples, Brittany Howard of Alabama Shakes and Zac Brown will join in the performance of "The Weight" by The Band.
They will sing during the portion of the show that pays tribute to musicians who have died in the past year.
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