The “Camp” theme of Monday’s upcoming Met Gala has reportedly left some celebrities and their stylists clueless as to how to dress. Susan Sontag’s famous essay “Notes on Camp” offers some pointers, but even the late writer admited that camp is hard to define. It’s a sensibility, not a concrete idea. Like beauty, camp is also often in the eye of the beholder. It’s hard to intentionally be camp, and sometimes the best example of camp didn’t set out to be camp at all. When it comes to being camp, we’ll quote Gypsy Rose Lee: “You either got it, or you ain’t.” And when it comes to identifying camp, we’ll quote Supreme Court Justice Potter Stewart: “I know it when I see it.” Which is all to say, maybe the best way to describe camp isn’t in words, but rather by way of examples. Here, some of the campiest red carpet looks of all time, from Björk’s infamous Swan Dress to a Bette Davis classic.