Kicking off in the venue Niall used to dream about performing in, Croke Park, Dublin, they then took on stadiums in Sunderland, Manchester, Edinburgh and Wembley.
The atmosphere was electric and we've got the pics to prove it.
Check them out and don't forget, if you were lucky enough to watch 1D and got some cracking shots to show them, tweet photos to @onedirection with the hashtag #1DWWAPHOTOS or use the Zappar app with your programme (more info on that, coming soon).