Aiden and Sophia are the most popular baby names

One of the biggest decisions that parents-to-be face is what to name their little bundle of joy. Of course, there are so many factors that go into figuring out what their newborn will be called for the rest of his life. They may choose to use a popular family name or select one based on their religion, but whatever they decide, figuring out the perfect moniker is no simple task.

That is why, at some point, mommies and daddies often take a peek at the list of the world's most popular baby names, which was recently released.

Curious about which made the list? You may be surprised. Parents aren't opting for ultra-trendy nomenclatures that are usually favored by celebrities. Instead, they are calling their infants names that were favored by their grandparents. That's right - retro is back in style.

''Names from two generations back are meaningful and retro and have a cool factor,'' Linda Murray of BabyCenter said in a statement.

Aiden and Sophia topped the list for the most popular baby names and options like Ava, Lily and Jack have become favorites of parents everywhere.

''They don’t want their child to be a cookie-cutter. They want a unique identity,'' Murray revealed.

Of course, this list should only be a guide if you are expecting. As a mom or dad-to-be, you know that it is most important to select a name that is meaningful to you. Trendy nomenclatures come and go, but keep in mind that your little bundle of joy will likely be called what you dub him for the rest of his life. What does this mean? That you may want to think twice about naming your baby boy Prince.