The Voice USA 2014 John Martin and Grant Ganzer Before the Battle Sneak Peek

John Martin and Grant Ganzer see each other as brothers, so battling won't be easy. Before they compete though, there's a lot of QT for them to spend together!

• 2014-10-13T22:10:29+00:00
• Duration: 01:29

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The Voice USA 2014, John Martin , Team Blake, Grant Ganzer , Before the Battle, Sneak Peek, tHE vOICE, tEAM Gwen, The Voice USA, Gwen Stefani, Pharrell Williams, Blake Shelton, Adam Levine