Horan and Lovato 'just good friends'

Irish boyband star Niall Horan has insisted there is no romance between him and Demi Lovato.

The One Direction star and the Disney actress – who is now appearing as a judge on 'X Factor USA' – struck up a friendship, with even Simon Cowell jokingly warning Demi to “stay away” from Horan.

“Travelling around the world and all the promo that we do – it doesn’t leave time for a girlfriend. It really doesn’t.

“Demi is really cool and we’re really good friends,” Niall, who recently turned 19, told the Daily Mirror.