One Direction did not know each
other before X Factor.
Fifth Harmony did not know each other before X Factor.
They were both formed by Simon Cowell.
One Direction shortens to 1D.
Fifth Harmony shortens to 5H.
A number and a letter each.
There are 5 people in 1D.
There are 5 people in 5H.
There are 12 letters in One Direction.
There are 12 letters in Fifth Harmony.
They both performed the first song that they sang together on
live shows.
Zayn and Ally's grandparents both passed away during X
Factor.
One Direction and Fifth Harmony both ended up in 3rd place.
One Direction became the biggest boyband. Now wait and you'll
see where it goes with Fifth Harmony.