The 'Pillowtalk' singer, 23, has gone bubblegum pink and showed off his new look on Saturday (13 February).
The former One Direction band member posted no comment, just a photo of his topless tattoed shoulders and crop of bright hair.
Fans went wild for the change of colour, calling Zayn "beautiful" and "hot".
Another devotee added: "I couldn't be prouder than i am of you now. You deserve all the best and we are here to give you. Keep smashing boi."
Just days ago, Zayn had been peroxide blonde. The naturally dark-haired singer has never been afraid to experiment with his style, having had a shaven head, green hair, a quiff and ponytail.
Can't wait for you to hear the next song :) did the video today— zayn (@zaynmalik) February 14, 2016
The popstar also teased his 17.8million Twitter followers with news about his next single, tweeting: "Can't wait for you to hear the next song :) did the video today."
His first solo single 'Pillowtalk' topped the UK chart following its release on 29 January.
The track sold 267,000 downloads - the highest one-week sales of 2016 - and became the fastest song by a debut artist to reach number one on Spotify's global chart.
As well as musical success, Zayn just happens to be dating one of the hottest women on the planet right now - supermodel Gigi Zadid.
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