In 2006, an unassuming baby girl's name found itself unexpectedly — and explosively — popular in the United States. In 2000, it was only the 48th most popular baby girl name in the U.S. By 2006, it was comfortably in the top five. This deluge of baby Isabellas might have been a surprise to the uninitiated — that is, the non-fans of Twilight. What’s not hard to say is that pop culture undeniably impacts many areas of our lives, including the world of baby names. In 2009 and 2010, it was the number one most popular baby girl’s name in the country.