Supermodel and new mom Gigi Hadid is back to her day job after welcoming baby girl Khai with Zayn Malik! The 25-year-old supermodel recently took to Instagram and in a white crop top and pants and captioned the post--"workin 9-5." Given her caption, famous friends from the fraternity and fans commented with lyrics to Dolly Parton's famed "9 to 5" along with praise for the new parent. "Khai's mom," one comment read.