It has been revealed that the One Direction boys were treated to Zoom teeth whitening during their time in The X Factor.
Dentistry.co.uk states that all of the boys – who have an average age of 17 – were taken along to a clinic in order to have their smiles brightened.
The pictures show Liam and Zayn grinning after having the treatment, which takes less than an hour to perform by a professional.
It certainly helped them to look the part on the TV show, even though they ultimately came third to Matt Cardle and Rebecca Ferguson.
However, it is now being widely rumoured that One Direction has been signed up by Simon Cowell's record label Syco, so impressed was he during his time as their mentor.
If this is the case, they are sure to be having more Zoom treatments in the future, as Cowell is known to be a big fan of teeth whitening.
