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• Each of the Claw’s four huge insect-like legs contains its own full-size sound system, each one powerful enough for an entire arena, plus there are 72 separate subwoofers.

• Show director Willie Williams got the inspiration for the Claw from the Theme Building at Los Angeles International Airport, and it can only be used in tiered football stadiums.

• The Claw is twice as high as the previous largest stadium set, from The Rolling Stones’ A Bigger Bang Tour. “Theirs would fit underneath this one,” says Williams.

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