Katie Couric sat down with 14-year-old fashion blogger extraordinaire Tavi Gevinson for Glamour.com to talk about her site's success and how she became interested in style to begin with. Tavi, who's been nabbing front row seats at fashion shows since the ripe old age of 13, told the news anchor, "It's only when I type things out, when I'm writing my blog, that it hits me how ridiculous and really cool it is.