Famous model Gigi Hadid is being sued by a photo agency for posting a copyrighted photo of her on Instagram without permission. Hadid is now arguing that it was “fair use” because she contributed to the photo by smiling in it. The 24-year-old model had posted a copyrighted photo of her on a New York City street to her Instagram account @gigihadid, which currently boasts over 48 million followers. The post led to a copyright infringement lawsuit by Xclusive-Lee, Inc.,…