They are a boy band from the UK. One direction consist of Liam Payne, Niall Horan, Zayn Malik, Harry Styles and Louis Tomlinson.
All 5 members originally auditioned for the 7th series of X Factor UK but failed as soloists. Instead Simon Cowell (the judge and producer) and Nicole Scherzinger (guest judge) decided to put the 5 of them into a group since they were short of groups and they were too good to let go off.
One Direction, even though was formed by the judges and not originally a group, proved themselves to be the most popular group in their category (3 other groups were eliminated in the first 4 weeks). They managed to reach 3rd in the competition.
Despite not winning X Factor, they garnered worldwide fans, both faster and more successful than the winner and first runner-up, Matt Cardle and Rebecca Ferguson.
They are now currently on tour promoting their debut album Up All Night, and have already spawned 3 Top 10 hit singles: What Makes You Beautiful, Gotta Be You and One Thing.
They have already taken the UK by storm and are now conquering the US market with huge success. Not only that, they have been trending all the time on Twitter, overtaking Justin Bieber's fans.