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.

    Kimberley Dadds
    by Kimberley Dadds

    BuzzFeed Staff, UK

    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?

    Fiona Hanson / PA Archive/Press Association Images

    It's just too much nostalgia to handle.

    Ray Burmiston/Photoshot / Getty

    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.

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

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