So does that mean we can start calling him Vain Zayn?
Talking to You magazine, the boys have revealed that it is Zayn who spends the most time fawning over his beautiful mug in the mirror.
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Louis Tomlinson says: "We joke about it - we'll say, 'Zayn, quick look, there's a mirror over there you've missed!"
All the boys point to Zayn when asked who is the most conscious of how their hair looks.
And even Zayn admits: "Yeah, that's probably going to be me!"
Zayn was snapped leaving the tattoo parlour yesterday. Copyright: [Splash]
Well, that bleached tuft isn't going to quiff itself, is it?
Harry Styles says: "Zayn's quiff is almost as tall as Mount Kilamanjaro!"
He is right, it is huge, at this rate other celebrities will start climbing it for charity.
Zayn has said in the past how important looking good is to him, even on the days when he's not being one fifth of the world's biggest boy band:
"Even if I've got a day off, I'll still have a shower, do my hair, all the normal stuff. It's not that same grooming as for TV or anything, but I do like to look after myself."
We just hope his girlfriend Perrie Edwards gets some time in the bathroom too!