Teen Style Rookie blogger Tavi Gevinson interviews Gwen Stefani for Teen Vogue

Teen fashion blogger Tavi Gevinson isn't crazy about celebrity designers.

"Too often I feel people are expected to drop a couple hundred dollars just because X celebrity was good in Y sitcom, thus somehow making X's design abilities top-notch," the 14-year-old wrote in an article for Teen Vogue. "So, though a fan of Gwen Stefani's music, I wasn't sure what to expect when I entered the L.A.M.B. studio."