R&B superstar Beyonce shot the iconic video for her hit song Single Ladies (Put A Ring On It) in a studio once used to film pornography.
The singer insists she had no idea about the history of the New York building until after the promo wrapped - and now she is reminded about the sordid place whenever she watches the clip.
She tells W magazine, "I began to get suspicious because every dressing room had a theme. I was in the jungle room, and I realised they had made a porno in there. There was no air-conditioning in the studio and that added to the drama - we were shiny and sweaty."