“Aggghhhhh! Lets do this! Cant believe its 1st show day! Cant wait,” Horan wrote on Twitter before the show.
The world tour, named after the group’s second studio album, will take the boys all over the world for more than 100 shows in places like Stockholm, Zurich, Madrid, Nashville, Vancouver and Sydney.
“London you were incredible tonight.. Great start to the tour. Thank you so much for coming to see us. Love you all .xx,” Styles wrote on Twitter following the tour opener.
One Direction will play the O2 Arena again on Sunday night before heading over to Glasgow for yet another doubleheader on Feb. 26.
Check out the gallery, above, for photos from One Direction’s tour opener in London, England. Then tell us: Do you have tickets for a 1D show this year?
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