One Direction star Niall Horan reportedly text Simon Cowell asking if it would be alright to try out dying his hair black, and was met with a stern 'no'.

A source said: "Simon still controls a lot about the band down to the finest detail.

"Niall was desperate to get rid of his blond locks and go black just for an experiment, like loads of normal teens.

"Luckily, he had the sense to ask Simon first because he knows how he works.

"He put in a text to him asking if he could change his hair colour."

The source added to The Sun: "Simon was straight back on to him with a short reply, 'No way'."

To be honest - right decision!

Can't imagine Niall with black hair, and every boy band needs a token blondey!

- New! Magazine