On this very day, at this very moment, who could possibly be bigger than Beyoncé? A presidential inauguration, a Superbowl halftime performance, another world tour, a headlining gig at the annual Essence Music Festival, an album on the way, a 17th Grammy, thatVOGUEmagazine cover, anOprah Winfreyinterview, and of course, that HBOdocumentary. For the 31-year-old superstar — and my fellow Texan — “Life is But a Dream.” And aptly so, one of the poshest publications across the pond is getting the Mrs. Carter cover girl treatment. Enter BeyoncéThe Gentlewoman.