Via the band's Twitter feed: "Find this cap somewhere in downtown Seattle."

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I have no idea where that is. Maybe you do? If so, you might be getting some free tickets to tonight's show. Follow Soundgarden on Twitter for the latest clues.

UPDATE: Get thee to Pike Place Market!

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More updates after the jump—it appears the magical bottle cap is still out there. Somewhere.

There is a winner!

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And now a vague picture of a fish...?

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To the gum wall in Pike Place!

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