A couple of weeks before the world will get to see it, Missy Elliott stops by the Manhattan headquarters of her label, Atlantic, to give staff a sneak peek of the video for her hypnotically percussive, Pharrell Williams-produced new single, “WTF (Where They From),” the latest in a series of highly conceptual, future-shock clips that revolutionized the visual language of pop music. It’s also the 44-year-old hip-hop legend’s first real single in 10 years. But the wait is going to be just a tiny bit longer. “I’m going to tinkle real quick,” Elliott says cheerfully, with just a hint of a Southern accent. “Won’t take me a minute.”