"What Makes You Beautiful" is probably the most popular.
Harry is the MOST POPULAR person in one direction he is gorgeous <3 and I LOVE HIM
One Direction's first song AS A GROUP is "What makes you beautiful." Also, I believe this is their most popular song they have.
From the x factor
ATX
1 Direction met when they had the group challenge for The X Factor and then even though they came 3rd in the competition after Rebecca Ferguson and Matt Cardel they're one of the most popular bands in the world.
No Dannii minogue is,Danni was voted the most popular judge on the x factor in 2009.
Statistically One Direction :)
One direction
one direction
All Of Them :D
Niall
tulisa