Gwyneth Paltrow Celebrates Goop With the Help of Reese Witherspoon, Cameron Diaz, and More Celebrity BFFs

In an effort to promote her lifestyle company's foray into the world of beauty products, Gwyneth Paltrow really went all out. The actress — who recently revealed she's taking a break from Hollywood — hosted a star-studded, celebratory lunch in honor of Goop at her home on Sunday that included celebrity friends like Reese Witherspoon, Drew Barrymore, Cameron Diaz, Nicole Richie, and Rachel Zoe. The guests ditched their boyfriends for a girls-only, sunshine-filled party in Gwyneth's backyard while wearing floral headpieces and posing for a whole bunch of supercute photos for Instagram. Keep reading to see all of the sweet snaps, and check out Gwyneth's hilarious, musical appearance on The Tonight Show!