(CNN)--If you know a little boy named Aiden -- you're not alone.
For the seventh year in a row, Aiden was number one on BabyCenter's list of the most popular baby boy names.
Sophia topped the list of girl's names.
Jackson was number two on the boy's list and Mason came in third.
As for the girls, Emma came in second, followed by Isabella.
Babycenter draws its data from hundreds of parents who share that info with the website.
The Social Security Administration comes out with the government's official annual list of top baby names every May.
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