Marilyn?

I was at the station this morning (figures, it was a work day...) and as I wandered across the concourse I wondered what the music was. A crowd was gathering around the barriers that look down on the Eurostar part of the station so I mingled and took a look. Down below us was a small band playing amplified music to onlookers. Across from them there was a solitary cameraman filming a Marilyn Monroe look alike as she danced with a suited male and waved to onlookers. I presume they were promoting something but there was no indication as to what. My camera, as ever, was ready...