After describing her daughter’s name as “unusual and difficult” in an interview before baby girl’s arrival, Holly Madison is now spilling the beans! Rainbow Aurora was born Tuesday, March 5th. In a recent blog post, Madison said she was inspired to name her daughter Rainbow by a former schoolmate. “There was a girl in my school a few years younger than me named Rainbow and I was so envious of her name because it was so pretty and unusual,” Madison wrote. Rainbow is the first child for Madison and her boyfriend Pasquale Rotella.