"Brony" hair is the latest style to take over Instagram. The look involves dyeing your locks the signature pastels and candy-coloured hues of the toy ponies, often mixing up different shades at the same time.

Katy Perry - Mad Potion © 2015 Instagram

Some stars, like Katy Perry and Kelly Osbourne, who is known for her violet crop, have been rocking the look for months, while others, such as model Georgia May Jagger, are new to the Brony scene. The daughter of Mick Jagger and Jerry Hall took to Instagram earlier this week to unveil her new ’mermazing’ look, with a photo showing off her multitoned green, pink, purple and orange locks captioned "Bronies with @alexbrownsell @bleachlondon Mermazing Hair colour." The UK fashionista has kept her roots natural and left sections of her long blond hair uncolored to keep things choppy.

Georgia May Jagger’s hair color © 2015 Instagram

Cara Delevingne was also spotted championing the look earlier this month when she stepped out with sugary pink hair. The actress turned out to be sporting a wig — a good idea if you want to test out Brony hair without committing — but her choice of color proved the trend is hot right now.

Kelly Osbourne © 2015 Instagram

Brony hair could be a natural progression from ’Rainbow hair’, the trend that has been sweeping the Internet all summer. Thanks to celebrities like Kylie Jenner and Kaley Cuoco, graduated ombré styles that involve leaving the roots their natural colour and adding flashes of pastel or fluo tones to the bottom half of your tresses have been big news. The concept is both fun and practical in terms of regrowth.