View gallery Image Credit: SplashNews For more than a decade, Gigi Hadid has been a dominant force in the fashion industry. Since breaking out in the mid-2010s, she's walked runways across New York, Paris and Milan, becoming one of the defining faces of her generation. Now, as she celebrates her 31st birthday on April 23, Gigi continues to balance life as a top model and a devoted mom. From iconic moments at the Victoria's Secret Fashion Show to high-profile designers like Marc Jacobs and Michael Kors, Gigi has delivered countless unforgettable runway looks over the years.