Gigi Hadid has rung in her 26th birthday in style! The supermodel was ultimate cool mom as she stepped out alongside her boyfriend Zayn Malik, with whom she shares her daughter Khai, for a birthday date night! The couple coordinated looks for the special occasion on April 23, with Gigi rocking a knit cap-sleeve top in a periwinkle shade, with matching bell-bottom pants, and white leather boots.