The pair separately unveiled their coloured locks on their social media accounts over Valentine's weekend.
Jenner opted for a cotton candy shade of pink from the roots to the tips, while Malik went bold with hot pink.
Malik has spent recent months experimenting with various hair colours.
The 23-year-old has jumped between green, grey, bleached blonde and now pink in the past year.
However Jenner, who has gone pink in the past, previously declared she would never go pink or purple again.
"I'd probably never go pink or purple [when it comes to my hair] because blue is my thing," she told Vogue.
"Other than that, I'm extremely open to changing my style and trying different things."
Looks like she changed her mind (and still rocks it).