Gronk attended a Celebrity Fight Night charity event this past weekend in Phoenix and he stepped up to the mic to perform Vanilla Ice's, 'Ice Ice Baby,' but he forgot the words!

I would expect Gronk to crush that song out of the park every time, but surprisingly he didn't. He must have been asked last minute to do the song or something, he didn't seem prepared, oh well.

No worries though he totally redeemed himself with some stellar dance moves.

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