Finally, the day has arrived: One Direction: This Is Us is in theaters right now! In honor of our five favorite guys' monumental occasion, we're dedicating our Friday Flashback to 1D. We dug up super-old photos of Harry, Zayn, Niall, Louis and Liam and compared them with recent snaps of the guys. Click through the above slideshow to check out the boys then and now!
Are you going to see This Is Us this weekend? Let us know in the comments