A rep for One Direction's Niall Horan has distanced the singer from a romance with Ariana Grande.

The US star was spotted leaving the Irishman's house in London in the early hours of the morning recently.

This instantly prompted speculation that the pop star and the 'Problem' lady are dating.

However, a rep denied the gossip, stating:

"Ariana is friends with Niall. He had a big party that she attended."

Grande is in the country at the moment as part of her European Honeymoon tour.

She will also perform at the Capital FM Summertime Ball - on the same bill as One Direction - at London's Wembley Stadium on Saturday (June 6).

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