It's become customary for brands to celebrate milestone fan counts on Facebook with oversized stunts—the bigger the better, to match the swelling number of drooling followers. Old Navy hit 5 million fans on Tuesday night, and marked the occasion with a truly larger-than-life photo post—showing a giant 120-by-60-foot coupon, shot from the sky, comprised of several hundred humans, props, text and a bar code made of 88 placards. The bar code is completely scannable, and will get you 30 percent off your entire purchase at Old Navy stores in the U.S. and Canada this Friday, Saturday and Sunday. "Because of awesome Facebook fans like you, we've reached 5 MILLION strong. And now it's time to say thanks. Let's bring out the big deal! Oldnavy.com/5million," the brand wrote in its celebratory post, which linked to the video below. Pretty nice work by Crispin Porter + Bogusky. And the best part? It's not a QR code.