The Grammy-winning a cappella group and special guests Kelly Clarkson, Backstreet Boys, Penn & Teller, and Maren Morris celebrate the holiday in Las Vegas.
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CAST
Scott Hoying
Self
Mitch Grassi
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Kirstin Maldonado
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Kevin Olusola
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Matt Sallee
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Kelly Clarkson
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Maren Morris
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Nick Carter
Self - Backstreet Boys
Kevin Richardson
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Howie Dorough
Self - Backstreet Boys
AJ McLean
Self - Backstreet Boys
Brian Littrell
Self - Backstreet Boys
Penn Jillette
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Teller
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