It sure looks like Gigi Hadid and Zayn Malik would like you to know they're back on. The former couple was photographed out in New York City with Bella Hadid and Gigi's brother's girlfriend Dua Lipa last night. The two matched in mint green, Gigi held onto Zayn's arm, and paparazzi caught the PDA moment. Zayn's birthday is today, so the gang was out ahead of time to celebrate.