04/14/2012 11:56 am ET Updated Apr 14, 2012

Gwyneth Paltrow, Zooey Deschanel & More Hit The 'My Valentine' Premiere (PHOTOS)

The problem with going to a party thrown by Paul McCartney is that all the A-listers are going to show up wearing threads designed by his daughter, Stella McCartney.

Sir Paul premiered his new video "My Valentine," which stars Johnny Depp and Natalie Portman, last night, and as it turns out, tons of people opted for looks from Stella's spring 2012 collection -- awwwwwkward.

Pregnant Reese Witherspoon hid her baby bump in a black lacy frock, and Zooey Deschanel went for one of her standard froufy dresses. Gwyneth Paltrow and Kristen Stewart were there, but both covered up, Gwyn in jeans and K-Stew in a blue skirt.

But several guests opted for the spring/summer 2012 cutout dress: Miranda Kerr chose one in basic black, Liberty Ross donned the red version and Rumer Willis looks ravish in the black one.

But hats off to Gwen Stefani, who earns sexiest of the night in a sheer Stella jumpsuit that showed off her stunning figure.

See all of the red carpet looks below!