One Direction's  10 Biggest Career Moments

10. One Direction  Is Formed On The X Factor

9. One Direction Comes In 3rd Place On The X Factor

8. What Makes You Beautiful Is Released

7. One Direction Performs At 2012 Summer Olympics In London

6. Midnight Memories Becomes The Fastest Best Selling Album Of 2013

5. This Is Us Movie Premieres

4. Where We Are Tour Is The Top-Grossing Tour Of 2014

3. Zayn Leaves One Direction

2. Drag Me Down Is Released

1. One Direction Performs Their Final Performance On The X Factor