As Gigi Hadid celebrated her 26th birthday, the model was joined by boyfriend Zayn Malik for an evening of fun in New York.The mum-of-one, who previously shared a look inside her baby girl's nursery, was spotted packing on the PDA with her other half as they walked along a street. Gigi and Zayn, 28, only had eyes for each other as they held hands and looked lovingly at one another.