Lady Gaga, Zac Brown Added to GRAMMY Sinatra TributeHarry Connick Jr. and Celine Dion have also been added to the special.
Demi Lovato, Usher, Zac Brown & More Added to Musicares Concert for Lionel RichieThey join a star studded lineup featuring Luke Bryan, Lady Antebellum and Pharrell Williams.
Elton, Mumford Lead Levon Helm GRAMMY Tribute
GRAMMYs Announce Levon Helm Tribute With Elton John, Mumford & Sons, Zac Brown

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