Her new colour has divided critics, with some fans saying they love the daring new 'do, but most have taken to social media to compare her to Harry Potter's Raco Malfoy and Skyfall's Raoul.
But she's clearly as confident as ever as she posted a series of selfies thanks to her hairdresser Gregory Russell before sitting FROW with her mother Kris Jenner and husband Kanye West at Balmain and Lanvin.
"Platinum! Thank u @joycebonelli for being my inspiration and introducing me to @GregoryRussellHair," she wrote on Twitter.
The trio were spotted partying into the night at the Balmain aftershow dinner with Lewis Hamilton and Olivier Rousteing.