The 18-year-old revealed her new hairdo via Instagram, saying she wanted an "ashy dirty blonde" for the coming months, much like Khloe, 31, is currently sporting.
Kylie told fans: "Took months of not dying my hair and wearing wigs to get my hair back to health so I can do this!! Thank you @priscillavalles @maishaoliver for putting up with me all day. I'm going for an ashy dirty blonde for the fall. But this s**ts a process!"
She jokingly added: "I'm coming for u khloé!"
Most recently, the teenager has been sporting her natural dark hair alongside a massive array of wigs, such as this one she wore to the MTV VMAs over the weekend.
Of course, Kylie and Khloe weren't the first Kardashian Jenner stars to sport blonde... we all remember Kim's infamous platinum 'do at Paris Fashion Week earlier this year!