Victoria Beckham invaded Macy’s Herald Square today in a big way.

Beckham, sometime-Spice Girl and wife of soccer stud David Beckham, was in the city Wednesday to help launch her new campaign for Emporio Armani Underwear’s Fall 2009 collection, unveiling a 20-foot ad in the flagship department store.

The banner features Beckham posing in a lacy pair of skivvies, her hair twisted into a tight, braided chignon.

The real-life Posh, decked in an Emporio Armani tuxedo jacket and platform heels, posed next to her giant likeness and stuck around for a meet-and-greet with fans in the women’s lingerie department.