they have 18 songs :p
At least 18 or 19 songs
Most of one direction's songs are about love
no, one direction have only 15 songs.
One Direction have 37 songs, including one's from X-Factor :-) one direction only have 15 songs by them on their album though with three songs that arnt on their album
Niall has only written songs when he was in One Direction.
One thing
pop songs
One Direction has created songs like "One Thing", "What Makes You Beautiful", "Gotta Be You" and "I Should Of Kissed You".
51
Youtube
Most of their songs were not written by the boys.
47 not including the x factor songs. :)