One Direction, Three autobiographies
19 November 2013 Last updated at 17:24 GMT
Fans openly wept after meeting their One Direction heroes as the international megastars Niall Horan, Zayn Malik, Liam Payne, Louis Tomlinson and Harry Styles released their third autobiography "Where We Are" by signing copies of the books in north London.
The band recently announced their first worldwide stadium tour for 2014. The Where We Are tour will kick off in the US next April before heading to the UK and Ireland next May.