One Direction Photos: See the British Boy Band's Rise to Fame (PHOTOS)
Today, One Direction mania officially landed in America, due in great part to the boy band's incredible performances on the TODAY show in New York City.
Well, things are only going to pick up as the week goes on - especially after tomorrow, when the band's new album, Up All Night, hits shelves.
Of course, being the awesome people that they are, many Celebuzz readers have been fans of One Direction from day one. Which is why we've put together a gallery of their many photos through the years, from their days on The X-Factor to their performances on TODAY.
Whether you're a superfan or just getting to know One Direction, check out their photos in our gallery now, then be sure to pick up a copy of Up All Night tomorrow!