Google now lets you hum to find that song stuck in your head

"What's that song that goes laaaa, laaa, la la la la laaa?" If you've ever found yourself asking such a question -- and I think that's most of us, at some point or the other -- Google has a new feature to help. Starting today, iOS and Android users can find a song by simply humming the relevant tune in the Google app or Search widget. Just tap on the microphone icon, say "what's this song?" and start humming for 10-15 seconds. No lyrics, artist name, or anything else required -- just not being totally tone-deaf, presumably.