Photographed by Perou for Esquire Magazine

Dame Helen Mirren is one cool lady. The 65-year-old actress recently stripped down for a shoot in Esquire Magazine, covering herself only with a Union Jack (Austin Powers would be so proud). Only last year Mirren beat 25-year-old actress Megan Fox by a landslide in Esquire's sexiest woman alive competition. Some people just improve with age!

Meanwhile, check out 12 other celebs rocking the Union Jack, and head over to Advanced Style to see slew of women 10+ years older than Mirren (who still have it going on).