Looks like posting that Kourtney throwback photo was foreshadowing for Kylie's own hair plans.

The Jenner debuted bleach blonde platinum hair yesterday. Naturally, she documented the entire day-long process on Snapchat, opting for a puppy filter for each shot.

While Kylie is no stranger to new hair colors, she tends to keep her experimentation limited to wigs and extensions. This new blonde shade, though, seems to be real (even if there are extensions involved.)

While Kylie has yet to reveal the final look, there's a good chance it just might not be ready yet. Going from Kylie's natural jet black locks to platinum can take all day, if not longer, just to achieve the desired blonde. The last we saw of Kylie, she had her new ashy blonde locks up in a wet bun, presumably headed to bed. I'm willing to bet she has more toning (and potentially, more bleach) to get through when she wakes up. Additionally, chances are she probably headed to bed with a head full of Olaplex (which helps nurture and restructure the broken bonds in your hair caused by bleach and dye.)

Of course, Kylie isn't the first to go blonde among her sisters. Kim has went to the blonde side and back multiple times over the years, and Khloe has been rocking a honey blonde at various lengths. Even Kendall tried out a natural blonde hue when she switched colors with pal Gigi Hadid for Fashion Week.

Knowing Kylie, however, we won't have long to wait to see the new shade.