Popsugar Fashion Gigi Hadid Gigi Hadid's Outfit at Kendall Jenner's Birthday Kendall Jenner's Birthday Might As Well Have Been a Runway For Gigi Hadid November 3, 2015 by Hannah Weil McKinley View On One Page Photo 2 of 2 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Kendall brought the wow factor via a sexy cutout neckline, but kept her accessories to a minimum. Previous Next Start Slideshow Gigi HadidKendall Jenner