It's Now Been Eighteen Years Since Geri Halliwell Wore ~That~ Union Jack Dress

Yes, the Geri Union Jack dress is now as old as a grown adult.

Newsflash: The most important moment in British pop culture history happened 18 years ago.*

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*ONE of the most important, depending on your opinion.

EIGHTEEN YEARS.

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Here's the Spice Girls at the BRIT Awards, circa 1997. You feeling old yet?

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It's just too much nostalgia to handle.

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AND it almost didn't happen. Geri posted this on her Instagram page on Wednesday morning, a few hours before the 2015 BRIT Awards are due to kick off.

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For a proper trip down memory lane, watch the whole, quite frankly amazing, performance here.

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