Mabel actually features on Not3s' own recent single "My Lover", but this team-up is a vastly different beast with super-sized R&B hooks and pop power by the metric tonne.

"'Fine Line'," says Mabel, "is a playful track that I wrote about that fun phase at the beginning of a relationship when you're trying to figure each other out. It's about getting lost in something without losing yourself completely and how that's exciting but also dangerous."

The BRITs Critics' Choice-shortlisted artist, who made one of our favourite songs of 2017, is following up her Ivy To Roses mixtape and Bedroom EP.

Mabel will be heading out on tour this spring, with both headline dates and support slots with Harry Styles confirmed. As part of the tour she'll hit London's Kentish Town Forum on 25 April - her biggest headline date yet. Find out her full live plans.

"Fine Line" is out now via Polydor.