Which Kardashian-Jenner scored the most Instagram likes of 2015?

You'll never guess which Keeping Up With the Kardashians star has gained 1 billion Instagram likes this year alone.

That's right, Kylie Jenner may not have the most Instagram followers of all her sisters, but her 960 posts accrued the most amount of likes, according to the 2015 Best Nine website.

Coming in a close second with 875 million likes to her 1,128 posts was big sister Kim Kardashian, who has 9.3 million more followers than Kylie, 18.

Meanwhile, Khloe came in third with 506 million likes on her 864 posts. And although Kendall's heart-hair snap was the most-liked photo of 2015, she was last of her sisters overall with 435 million likes for her 384 Instagram posts.

Time to get posting, Kendall!