1D fact files!

1. The five members of One Direction are Harry Styles, Niall Horan, Louis Tomlinson, Liam Payne and Zayn Malik.

2. To hire One Direction out for one night, it would cost over £21,000!

3. Each member of One Direction applied as solo contestants on X-Factor, but failed to qualify for the Boys category. They were then put together as a group.

4. One Direction starred in a series of TV ads and events for Pokémon Black and White.

5. Liam Payne Appeared on The X-Factor in 2008. He made it through to the judges houses.

6. Harry's full name is Harry Edward Styles. His Twitter is @Harry_Styles.

7. One Direction...