Whoa, was there a memo?
Bella was somewhat demure because her shiny Julien Macdonald gown featured sheer side panels from armpit to foot that looked positively matronly next to Charli's Swarovski crystal chain mini dress that revealed her hips completely — no mesh whatsoever.
Dang, girl! That's some showgirl-worthy attire.
Nomi Malone would be proud! Then she'd push Charli down the stairs to get her hands on that chain-metal number.
YOU KNOW IT'S TRUE! And we hope you got that reference.
[Image via AP Images.]