The 'Gotta Be You' singers will perform further gigs in London, Ireland and Manchester.
One Direction's Zayn's So Vain
The One Direction lads reckon Zayn knows he's beautiful and name him the "most vain".
The No. 1 'What Makes You Beautiful' stars joined Capitalfm.com for a live webchat, and the band reveal their vainest member.
"Zayn," they all agree. "Definitely Zayn."
"I always get told I’m the most vain," Zayn told us.
"But I’m not any more vain than the other boys in the group."
But bandmate Louis begs to differ, admitting that he likes to take care of himself but not as much as Zayn.
"I would say I’m vain and I’m less vain than you so…" he added.
If you missed the guys chatting to Capitalfm.com, you can watch the One Direction live webchat here .
'What Makes You Beautiful' is out to buy and download now, with the new album expected later this year.
Latest One Direction
The 'Little Things' stars will head out on their biggest shows to date next year – including Wembley Stadium.
One Direction have announced their first ever stadium tour, so to celebrate we've been looking at the things that could happen when Harry, Niall, Louis, Liam and Zayn take to the stage at their biggest ever shows next year.
The 'Kiss You' five-piece are back with a revealing music video for their new charity single.