Sound the klaxon - Hailey Baldwin has new hair.

Being blonde is fun, but with it comes the urge to dye it wild colours. It's so tempting to add a tint of a pastel shade to your locks when they're already light that every blonde gal has definitely stood in the home dye kit aisle in Boots staring at boxes of out-there colours. Inspiration wise, it doesn't get more out-there than Hailey Baldwin's new look. The model has just dyed her hair bright neon yellow. Hailey unveiled her new 'do in an Instagram photo that was taken on a shoot for Adidas this week. It shows her posing as her hairdresser Florido tends to her tresses, which are styled in a shaggy wet look. It's just the kind of colour that you'd expect to see on a teenager who's trying to piss off their school principal and we can't decide whether we're into it or not. It's not like Hailey can't pull it it off (she's literally Hailey Baldwin, like) but it's probably not one that many girls will be rushing to copy. Still, we'd put money on this look purely being a temporary thing. After all, it's barely two months since she dyed her hair pink. The look didn't last long, with Hails returning to her trademark blonde colour weeks later. Of course, we all know that rapid and drastic colour changes are hell on your hair. This tells us that Hailey is either going through a LOT of Olaplex right now or she's copying her pal Kylie Jenner and playing with wigs.