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The coaches enlist Mariah Carey as Key Advisor on the final night of Knockouts, when the coaches pair their artists to perform solo, then select just one of them to move on to the Playoffs.
First Air Date : Apr 26, 2011
Last Air date : May 21, 2024
Episode : 621 Episode
Season : 26 Season
Runtime: 43:90 minutes
Studio: NBC
Country: United States of America
Crew: