In the photo, the 'Shakespeare in Love' star can be seen posing with Nicole Richie, Gwen Stefani, Stella McCartney, Naomi Watts, Sam Taylor-Wood and Chelsea Handler, reported Ace Showbiz.
The stars were celebrating McCartney's birthday at a vegan restaurant. The designer also shared a photo from the dinner in which the stars struck different poses.
"Gals night out! Gwen, Gwyneth, Nicole, Chelsea, Naomi, Sam and I, Stella," she wrote.
Paltrow went to the event wearing a flowery top by Stella McCartney. Purple-haired Richie, meanwhile, was seen sporting an elegant-looking ensemble with creams, pinks and beige tones.
Prior to sharing the star-studded photo, Paltrow uploaded a sweet photo of her and her two children with a beautiful ocean view as the background. "Luckiest mom ever," she tagged the snap.
Paltrow and her husband Chris Martin recently announced their separation after 10 years of marriage.