And now, despite being in the middle of their US tour the lads have revealed their second album is well on it’s way.
"We've been recording already, actually," band member Niall Horan told MTV News.
"When we came back from Australia, we had a couple weeks off and then we went straight into the studio to get cracking on the next album."
"We wrote an absolutely cracking song that we're all kind of very excited about. And then last week we were in L.A. and we had five days off the tour to record in L.A. so we recorded more there, getting the album done."
And the 1D boys, Niall Horan, Zayn Malik, Louis Tomlinson, Harry Styles and Liam Payne – say that fans should be expecting the record’s first single out soon!
"We've got to make a decision for a single soon, 'cause we have to get a single out towards September, I suppose," Niall added.
"So obviously we don't have a date for that yet, so we're gonna have to start thinking, sitting down with the record label, sitting down with management, getting everyone's views. It's usually not a struggle."
Written by Jennifer Fletcher
Copyright : MTV Australia