One Direction fandom an 'obsession'
14 August 2013 Last updated at 11:35 BST
Boy Band hit makers One Direction have millions of fans and some can go to extreme lengths to get their attention.
So called "One Directioners" Becky and Sandra told BBC Breakfast about their fascination with the band.
Film-maker Daisy Asquith has made a new documentary that follows the fandom.