Taylor Swift may seem like the picture of confidence, especially when she?s up onstage, but even she, a mega pop star who?s on top of the world, has self-doubts. In her ?73 Questions? video, which accompanies her recent Vogue cover and photo spread, the ?Blank Space? singer admitted that the one thing she?s brought with her from childhood to adulthood is her insecurities. It was also the most spontaneous. Watch the video and continue reading at Huffington Post?