She broke up with her pop star beau Zayn Malik last month. But Gigi Hadid wasn't going to let that ruin her party as she was spotted looking every inch the supermodel arriving to her 23rd birthday fete in New York on Monday. She broke up with her pop star beau Zayn Malik last month. But Gigi Hadid wasn't going to let that ruin her party as she was spotted looking every inch the supermodel arriving to her 23rd birthday fete in New York on Monday. The American born beauty rocked a skimpy gold mini dress as she was joined by her sister Bella who commanded attention in eye-popping animal print couture.