One Direction released the trailer for their movie, 1D: This Is Us, and in it they showed some of the cutest pics of the boys from their childhood. We did some digging and found some more adorable pics of Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson as tykes. Check them out in the gallery and get ready to melt!
Which 1D member do you think was the cutest kid? Tell us in the comments!
One Direction have been breaking hearts since they first got potty trained!
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