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Appearing before throngs of adoring Japanese movie fans accompanied by his ever-present quartet of Ironjuko dancers was the inimitable Robert Downey Jr., whose upper lip appears to have crossed the point of no return since last we checked in with the unabashedly facial-hair-curious actor. But the look has grown more severe now—the furrowed brow, the unkempt hair, the dark glasses, and constipated pout all seem to suggest another man's superstar aura entirely. Help us, won't you, get to the bottom of this Robert Downey Jr. mini-mystery, by voting in yet another of those Defamer reader polls you love so much. All aboard for mustache rides after the jump!

[Photo credit: Getty Images]