Nicole Kidman has a legion of loyal supporters and her husband, Keith Urban, is certainly one of them. The Big Little Lies actress received the sweetest message from the country singer on Instagram and in it, he revealed his nickname for his wife. MORE: Nicole Kidman's niece is her double in beautiful photo which leaves fans flooredKeith was incredibly proud to congratulate Nicole on her Golden Globe and SAG nominations and wrote, alongside a photo of her: "Congrats babygirl on the tip top of