The singer's new 'do is a stark contrast his natural red hair.
Last month, Jack opened up to WHO about getting lip fillers after fans started questioning his plump pout.
“Oh yes, a hundred per cent,” he said, when asked if he’s had injectables.
I think it’s best to do whatever makes you feel good … That’s the thing with me over the years I’ve been looking for my identity. I’ve been trying to find myself again and I’ve definitely experimented with filler and whatever, and there’s no denying that. I think it’s pretty obvious.”
However, Jack denied ever having has cosmetic surgery.
“To me, lip filler is like makeup, it’s like doing your hair ... It’s not permanent. I’ve never had any kind of plastic surgery or anything like that. I think it’s each to their own, whatever makes you happy. It’s such a small thing for me.”