The 'Where Are You Now' singer took a leaf out of Kylie Jenner's book and decided to mix things up a little after growing tired of his almost white locks and as a result, social media has gone into meltdown.
Justin drew attention to his new look via a melange of half-naked gym selfies and admittedly, we noticed his new 'do before his abs of steel...
Since debuting his new look, Justin and his shirtless snaps (alongside some equally cute, fully clothed ones) have gained a staggering 10.7million (yep, you read that correctly) likes altogether and fans have been taking the comments section in their droves.
One wrote, "OMG, he's gone purple! It actually really suits him," while another said, "I would totally dye my hair this colour now."
On the other hand, some called Justin's hair transformation "A bit girly," and another simply left, "Granny hair," under one of his pictures.
Justin isn't the only celebrity to have hit the bottle (of hair dye, please people) during the weekend as Little Mix's Jade Thirlwall also took to the picture sharing website to unveil her silvery-grey tresses - which we totally adore, FYI.
2016 is so full of hair inspo already, right? Excuse us while we book a salon appointment...
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