You'll be well aware that 'Hotline Bling' has been one of the biggest songs of the year - heck, it even made #3 on our Top 10 Songs of 2015 list, so it must be good.

With that in mind, Years & Years have taken the Drake song and mashed it up with Katy Perry's 'Dark Horse' - backed by a string quartet, no less - and the result is actually pretty good.

They performed it in the BBC Radio 1 Live Lounge, and you can see it below: