It kicks off with some serious cheesy eighties VHS action of a video made by Kris Jenner when she turned 30.
We cannot possibly explain how amazing this clip is...words are useless. Just remember, "She love you."
It then morphs straight from 1985 into 2015 and into a tribute from Kim, Khloe, Kylie, Kourtney and Kendall.
It has many highlights including Kendall Jenner performing this amazing this treadmill dance.
What is going on here people? WARNING: Do not try this in local gym.
This song will be in your head all day.