Kylie Jenner may be known for her constantly changing hair – sometimes long and dark, sometimes short and green, sometimes with a chunky fringe – but now she’s trying a new look: blonde.

The 18-year-old reality star has adopted a dirty blonde look, with dark roots, and in an Instagram post she explained her commitment to taking on her flaxen-haired sister Khloe Kardashian.

Calling it a “process”, she explained: “Took months of not dying my hair and wearing wigs to get my hair back to health so I can do this!!”

And she hit out: “I’m coming for u khloe!”

Big sis Khloe went blonde in May and has been showing off her lighter locks ever since.

Their half sister Kim Kardashian has previously briefly gone blonde – before reverting to her natural darker hair colour.