Not every concert-goer at One Direction's performances is always a happy camper.
In a photo series collected over the years by various sources, we take a look at the most unhappiest people spotted at the concert - the fathers.
These supportive dads go along with their teenage kids and make sure they have a good and safe time.
However, what happens when you put a few hundred thousand fan girls and boys at one place? A whole lot of screaming.
See how these dads react during One Direction's concerts.