Last week, Ralph Lauren Home joined a chic crowd of social staples to celebrate the release of Nathan Turner's new book, I Love California - an illustrated love letter of sorts to his home state. Of course, a party thrown for an iconic interior and event designer calls for nothing short of the best. Joined by hosts Rachelle Hruska MacPherson and Sean MacPherson, Marina Rust, and Will Kopelman, Turner rubbed elbows with his fabulous friends (including Katie Couric, Peter Som, and Jonathan Adler) at The Jane Hotel's ultra-glam ballroom, sipping on breezy cocktails inspired by one of his favorite recipes included in the book. Click through for a look at what you missed!

[Photos by Zach Hilty/]