Nicole Kidman has shared a heartwarming new picture with husband Keith Urban, proving the pair are more loved up than ever.MORE: Nicole Kidman details her and Keith Urban's 'very poor' upbringings in heartfelt interview Nicole walked in the recent Balenciaga runway show with the likes of Naomi Campbell and Kim Kardashian, and Keith was there to cheer his wife on. The post was simply captioned with the word "backstage" and showed Keith with an arm wrapped securely around his wife as she sat in the makeup chair.WATCH: Keith Urban talks 16 years of marriage"My favs," wrote one fan while another added: "The photo of you and Keith.