IT’S MICHAEL, OF KORS: Michelle Obama’s love affair with New York designers continues. For her first official White House portrait, the First Lady has gone with a more established fashion name than in the past, opting for Michael Kors. In the photo, Obama dons a black crepe jersey racer-back gown from Kors’ spring collection. The designer had been approached by Obama’s unofficial style consultant, Ikram Goldman, to make a few pieces, but didn’t know if she was going to wear the dress until the photo was released Friday. Earlier last week, Obama wore an emerald green, Empire-waisted Kai Milla gown to celebrate Milla’s husband, Stevie Wonder, at the White House.