The well-executed Taylor Swift tour machine experienced a moment of spontaneity on during its stop in St. Louis on Saturday. During her performance of “You Belong With Me,” the 21-year-old was betrayed by her flouncy skirt, flashing her skin-colored spanx for all the audience to see. In an instance not unlike her Marilyn Monroe moment on the red carpet of the Teen Choice Awards, Swift handled the wardrobe malfunction the best way she knows how: by giggling and smiling accordingly. At least she continued on with the lyrics, but we’re more disappointed in her failure to unveil a tribute to the local crowd, as part of her ongoing regional covers project. Our prediction for “Hot In Herre” sadly wasn’t realized, but is she really too good for a cover of Nelly’s “Ride Wit Me“? The correct answer is no, no one is.