A real ‘moment’ is hard to come by in pop music these days. But when Mutya Keisha Siobhan, or MKS — the founding members of the Sugababes — finally drop their debut/comeback single, “Flatline,” it will truly be a moment.

Luckily, that moment has almost arrived: Nearly a full year after the announcement of their return (perfection takes time to craft, obviously), the almighty UK trio released a 1-minute snippet of the Dev Hynes-produced track today on SoundCloud. And yes, it’s huge.

The song’s production’s is sort of like a more robust, Top 40 pop-centric version of Solange‘s inspired True EP, bolstered by pounding drums, distant chants and, of course, the girls’ heavenly harmonizing, which lifts the track to another dimension. I mean, do you hear those soulful riffs?

“Oh no, darling I can’t hang on / I can feel a flatline, there ought to be a wave,” the girls croon. It feels instantly timeless, and seems destined to be one of the greatest records of 2013. And if you don’t think that’s one of the most beautiful choruses we’ve heard in pop this year, you’re flatly wrong.

Hang on to the nearest stable surface and start hooking up the heart monitor — the return of the almighty MKS is nearly upon us.