Boyband One Direction announced details of their 2014 stadium tour earlier this morning (May 16), but the lads have revealed that the news is overwhelming and they can't imagine how they will sell all of the tickets to the shows.

The group are due to kick off their 'Where We Are' tour next year with a run of dates in South America, Ireland and the UK, and at the press conference member Liam Payne confessed that the venues are so big they're now concerned that the shows might not sell out:

"We're looking at the pitch out in Wembley and we've got no idea how we're going to sell the tickets."

Louis Tomlinson added that the news is so huge they're now working hard to keep their feet firmly on the ground: "We're just trying to keep our feet on the ground. But right now we just take each day as it comes and get ready for the stadiums. I can't believe I just said that!"

Singer Niall Horan joked that he's particularly looking forward to the South American dates as he loves to party: "We're big into partying and Brazil are big into carnivals so we're excited to get involved."

Watch a clip from one of the boys' recent concerts here: