There must be something in the water... because baby fever is taking Hollywood by storm. We have a slew of new celebrity babies that are just as (if not more) famous than their glamorous parents. Little North West has made it onto the pages of fashion-bible Vogue before her first birthday. Blue Ivy has been mentioned in rapper dad Jay-Z's music. And the heir to the British throne, Prince George, stole the show with his cuteness on his first royal tour.