A slew of Chanel-clad devotees fêted fashion king Karl Lagerfeld and former French Vogue editor-in-chief Carine Roitfeld at the Swiss Institute last week, where the duo marked the U.S. debut of their much-anticipated photo exhibition, The Little Black Jacket. The title refers to the star of the project—that timeless, four-pocket black tweed masterpiece that’s a must-have for style mavens everywhere. Lagerfeld hand picked and photographed over a hundred musicians, models, actors, and other luminaries in a tribute to the iconic piece. The black-and-white images are compiled in a book of the same name, featuring muses like Sarah Jessica Parker, Kanye West, Anna Wintour, Yoko Ono, Elizabeth Olsen, Kristen Dunst, and Claudia Schiffer.

Chanel’s LBJ has maintained its mystique since first appearing in 1954. Coco Chanel created it not as a fluke, but as a gesture that stemmed from her vision for beautiful-yet-wearable clothes. Her design remains virtually untouched fifty-eight years later: each jacket is hand-stitched with silk and weighted with a chain that keeps the garment’s shape, hugging the form of its wearer. Its panelling even allows it to expand up to three sizes.

Resident style ambassador Jen Brill was on hand at the exhibition’s opening last Wednesday, rubbing shoulders with some of Chanel’s biggest fans. Find out what the LBJ means to them in the video below.

Little Black Jacket is on view at the Swiss Institute through June 15.