David Blaine performed such a horrific, gory illusion at a taping of Carson Daly's late-night show, NBC was considering canceling the segment. "Oh God, it was so gross - David pulled his beating heart out of his chest, put it back in, and then collapsed," said one spy at the taping. "He had to be carried off the stage by some helpers. Some girls in the audience ran out crying and screaming, while Carson just stood there stunned and they blacked out the stage."
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