MAN OF THE HOUR: Lady Gaga is flexing her gender-bending muscles in the upcoming issue of Vogue Hommes Japan, which hits stands next month. The pop star graces the cover of the magazine as “Jo Calderone”- a Sicilian mechanic who favors grease-stained t-shirts and cigarettes tucked behind the ear. Images of the Nick Knight Calderone shoot made the Internet rounds months ago, prompting plenty of speculation that it was really Gaga in disguise with a 1950s-style pompadour. Stylist Nicola Formichetti reignited the buzz Wednesday when he posted a few of the black and white images as mockup covers on his blog along with a brief q and a with the pop star in character. “I’d love to own my own car shop, I have a bunch of my own ‘muscle’ cars,” quipped Calderone.