This combination of photos released by Fox shows NFL wide receiver Antonio Brown in a hippo costume as he stands with host Nick Cannon, left, and Brown after he revealed his identity in the series premiere of "The Masked Singer," which aired on Jan. 2. The Nielsen company said that 9.37 million people watched the series debut last Wednesday. That was the biggest audience to watch the premiere of any unscripted show on television in more than seven years. (Michael Becker/FOX via AP)
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