Well, that was fast!

Less than two weeks after debuting platinum blonde hair for Paris Fashion Week 2015, Kim Kardashian has gone back to the dark side. Or has she?

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Kardashian’s makeup maven Mario Dedivanovic shared a pic via Instagram on March 17 showing the curvaceous backside of the Keeping Up With the Kardashians star, 34, with the caption, “Brunette vibes on set. Guess who?”

Dedivanovic tagged Kardashian and hairstylist Jen Atkin, both of whom have stayed mum so far on the hair color makeover.

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