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A look back at the best moments and performances from Season 4.
The final three singers perform never-before-heard holiday songs, with all-new animated clues.
The three finalists perform one last time before all are unmasked and one singer wins the trophy.
The Season Four contestants combined have sold more than 281 million records worldwide, appeared in more than 5,120 episodes of television and 204 films, appeared in five Super Bowls, have four stars on the Hollywood Walk of Fame, one Academy Award nomination, and one of Time Magazine's 100 Most Influential People.
