It comes days after Kardashian laughed off rumours she wears butt pads to enhance her famous booty.
She previously explained: "A couple years ago, I wore a skirt in Miami that was totally sheer. I had no idea it was SO see-through on my butt. I definitely never want that to happen again, so now I always wear shapewear.
"Sometimes, they have a sheer cutout like these capris from Body Wrap, so that's actually what you're seeing in the picture at the top.
"So, the fact is: I don't wear butt pads! At this point, I think everyone has seen my butt naked and knows I don't need them, LOL! (sic)"
Kardashian - who has North, three, and six-month-old Saint with her husband Kanye West - also revealed the secret to her perfect curves is "No days off" in the gym.
The brunette beauty was joined by Fergie, 41, and new mums Chrissy Teigen, Ciara and Alessandra Ambrosio in the music video.
- Bang! Showbiz