Full show replay: http://urlmin.com/grammyz Zac Brown, Mavis Staples and Elton John perform Grammys 2013 Zac Brown, Mavis Staples and Elton John perform Grammys 2013 Zac Brown, Mavis Staples and Elton John perform Grammys 2013 Zac Brown, Mavis Staples and Elton John perform Grammys 2013 Zac Brown, Mavis Staples and Elton John perform Grammys 2013 Zac Brown, Mavis Staples and Elton John perform Grammys 2013