Another day, another rainbow dye job for Kylie Jenner. Her uber long peach hair is all we want for our Summer transformation.
Rainbow hair doesn't always have to mean paint box brights. Work a grungier shade by adding grey undertones to a pastel colour like Hilary Duff.
Working her signature woodland elf meets super cool musician look, we're loving Grimes' pastel pink and black hair.
Model Irene Kim works every colour in the rainbow.
Miley Cyrus working grey/blue hair at the Met Gala in New York, May 2015.
Georgia May Jagger was the latest celebrity to join the rainbow hair club, courtesy of BLEACH London, August 2015.
Nicole Richie is just too cute. A sleek flicked bob in a muted sky blue looks chic without straying into twee territory.
Sleek, chic and red carpet ready, Nicole Richie's blush coloured hair is firmly on our beauty to-do list.
Zayn Malik with pink hair? We're in.
The biggest celeb hair transformation of the year, Bella Thorne's natural redhead to sea green.
Proof that Britney Spears is actually a mermaid in real life.
Sienna Miller's rose gold meets peach emoji tint basically broke the internet.
A black dip dye? Drew Barrymore makes it look effortless.
Remember that time Rachel McAdams added pink highlights? We kind of try not to as well...
Proving turquoise isn't always hard to pull off, Lady Gaga's super blunt bob was epic.
Queen of pastel hair Katy Perry goes for a bubblegum pink cartoon vibe.