Marni at H&M Collection Launch: A Star-Studded Soiree

Fellow fashionistas Dianna Agron, Lily Collins, Felicity Jones and Rose McGowan were also on-hand for the release - each looking young and fun in an array of funky frocks.

Milla Jovovich and her hubby Paul W.S. Anderson were also on the list of attendees, as they were seen rubbing elbows with short-coiffed cutie Mena Suvari and Swedish stunner Noomi Rapace.

Other recognizable faces included color block-wearing Freida Pinto, all-black clad Jaime King, trench-toting Rashinda Jones and the always-gorgeous Sofia Coppola in a shiny two-piece ensemble.

And the much-talked about clothing collab seems to have lived up to the hype, as Miss Barrymore gave her stamp of approval, telling press, "I love H&M and I love Marni. I love how H&M are bringing the regal, chic clothes of Marni to everyone."