Read this: The 12 best metal songs for karaoke
The feature is just one of many machine-learning updates announced by the company this week, currently available in 20 languages. The results include artist name, album art, and a percentage match for your vocal efforts.
Hum To Search also works with Google's Assistant, booting up when you say, 'Hey Google, what's this song?'
They say the feature works by using machine learning models to "transform audio into a number-based sequence representing a song's melody," which it compares to existing songs.
We've already tried with the riff to War Pigs and the intro to Raining Blood, and didn't get very far – but that's probably just us…