1D songwriting team aiming for 'boy-band guilty pleasure music'

One Directions' songwriters admit their tracks are "guilty pleasure music".

Writing and production team Carl Falk, Rami Yacoub and Savan Kotecha have been behind the boy band's three biggest hits - 'What Makes You Beautiful', 'One Thing' and 'Live While We're Young' - and say they aimed for a classic sound, rather than what is cool at the moment.