Whereas Kylie has gone blonde so many times, we can never tell if it's her real hair or a wig.
However, the sisters' dream hair color is one that none of them have ever tried.
Just recently, Kim filmed herself having her makeup done and my immediate reaction was, "She's dyed her hair again."
Debuting a new shade of honey blonde wavy hair, Kim wasted no time in trolling her sisters, "So Kylie and Khloe thought they were going to beat me to this hair color, I got them."
Glad to see that sibling rivalry is alive and well.
However, Kylie was quick to fight back, reposting Kim's story with the caption, "We know it's a wig @kimkardashian". Thankfully, Khloe was a little more supportive writing, "That's how you win lady!!!!!!"
I'm with Kylie on this one, that hairline makes me think it's definitely a wig, but I can totally see why this honey hue is the Kardashian/Jenner dream hair color.
Although it does remind me of a certain family member's hair...
To be fair, Reign Disick is also my hair icon.
This article originally appeared on Cosmopolitan.com/uk. Minor edits have been made by the Cosmo.ph editors.