New Yorker Rana Wardlaw took a photo of a billboard featuring the cover outside her office and then tweeted. “I saw it from my office window," Wardlaw said. “I work at a media agency called Starcom Worldwide. They unveiled the billboard for a few minutes to tape it for the Letterman Show and then covered it back up. I guess they didn't cover it fast enough!"
Shayk beat heavy favourite Brooklyn Decker to the coveted covergirl spot.