Nick Jonas has denied dating pop star Rita Ora, insisting rumours of a romance were "blown out of proportion".

The singer name-checked Ora in a 2013 track for the Jonas Brothers called What Do I Mean To You, sparking speculation he had enjoyed a fling with the R.I.P. hitmaker.

Ora denied the dating rumours, insisting they were just close friends, and Jonas has now backed up her story, telling Britain's The Sun newspaper, "The song was never released. That was for a good reason. It was blown out of proportion. We never dated. She's said that, I've said that.

"We hung out some over the summer. It's not as significant a thing in my romantic journey as some people would make it out to be."

Jonas is now dating former Miss Universe Olivia Culpo.

More: Rita Ora | Rita Ora Denies Nick Jonas Romance |

US Magazine: Rita Ora Says Nick Jonas Used to Have a Crush On Her: Video - Us ...