Their feud re-ignited when Kylie 'liked' a comment on the post from The Shade Room, which was titled "Mechie Spills Tea On His Lil' Home Movie With Blac Chyna, And How She Used To Babysit Him Back In The Day". The comment read, "This is the most hilarious thing I ever seen."
Of course, the fact that Kylie 'liked' this was soon picked up by everyone, and started to go pretty viral.
But Chyna isn't one to sit back and do nothing. Her move? To follow Kylie's boyfriend and baby-daddy Travis Scott on Instagram.
Ohhhh boy.
The feud between the two girls all began when Kylie started dating Chyna's ex, Tyga, who also happens to have a child with Chyna. It turned even uglier when Chyna then had a baby with Kylie's brother, Rob.
The girls seemed to silent the haters in 2016 when they posed together, writing, "When we've been best friends the whole time..."
However that didn't last long, when Chyna broke up with Rob.