In Wednesday night's The Sing-Off episode, a few acoUstiKats stripped to their boxers in a Risky Business tribute.
In Wednesday night's The Sing-Off episode, a few acoUstiKats stripped to their boxers in a Risky Business tribute. Tyler Golden/NBC
In Wednesday night's The Sing-Off episode, a few acoUstiKats stripped to their boxers in a Risky Business tribute. Tyler Golden/NBC

acoUstiKats made the most of their 'Sing-Off' experience

December 19, 2013 05:09 PM

UPDATED December 19, 2013 08:43 PM

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