Ariana Grande thinks Niall Horan is “really nice”.

Rumours are rife the 21-year-old Love Me Harder songstress is romantically linked with the One Direction singer, also 21, after she and Niall were recently seen partying together in London into the wee hours of the morning.

And Ariana is annoyed by constant speculation surrounding who she is dating.

"Well, that's just society. She must be pregnant, she must be expecting twins! But he's really nice,” she told UK newspaper The Mirror of Niall.

"I'm honestly so tired of talking about dating and my love life and everything.”

Ariana admits she has a “really fun” time with Niall whenever they hang out.

But after breaking up with ex-boyfriend Big Sean in April, who she dated for eight months, she isn’t very interested in pursuing another romance.

"I'm kinda doing my thing right now,” she shared, before noting there seems to be a gender divide surrounding the personal affairs of celebrities.

"People don't ask the men. It's like, 'Is that the only thing we have to talk about? Is that the only thing women are relevant for is their relationship with men?' No.

"We're absolutely perfectly fine on our own and we can talk about our music, our work, our kick-a** tours around the world. Why don't we talk about that as opposed to who we're currently flirting with?"

Ariana is currently performing concerts in England as part of her international The Honeymoon Tour.

And she is absolutely loving her time in the country so far.

"It's honestly been so fun being in the UK,” Ariana gushed. “I had my show and went dancing with my dancers.

"There were cool clowns [at Cirque] and people with weird baby heads on, it was really fun.

My friend Fredo is really close with Niall and he came to my show in London, I met him there, he was super nice.

"We then all went over [to Niall's] for a game night, it was really fun."