Nathan Sykes has praised Ariana Grande's contribution on their collaboration 'Over and Over Again'.

The Brit has included both a solo and a duet version of the tune on his upcoming album 'Unfinished Business'.

The two singers previously dated and it was the second that they had worked together.

Speaking about the collaboration to Teen Vogue, Sykes said:

"We wrote that song so unbelievably quickly. It all just poured out, and then we recorded it within the day. And that was that, and I was very, very happy with it and I released it in the UK. And then, I was like, 'This would sound just incredible as a duet'.

"I'd previously worked with Ariana on 'Almost is Never Enough'. Having that previous experience working with Ariana - and obviously, you know what an incredible voice she has. Everyone knows that. So, I just reached out. And I was like, 'You fancy singing this song?' She was like, 'Yeah. This is beautiful'. It was just a really nice moment. And she went in and killed it.

"I really wanted to include both versions because, from the reaction that I've had, people love both. And to leave one of them off the album would be unfair. So I'm glad they're both coming out."

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Listen to the duet below: