The most recent update to Android’s Google Now voice feature, as noted on the Android Google+ account, includes a very handy new “what’s this song?” feature.
The enhancement is reminiscent of the popular Shazam feature: simply ask your device “what song is playing?” and your device’s microphone will listen to your music, interpret it, and then notify you of the song’s name.
Additionally, the feature can even speak the song title back to you. Artist information, and pricing and download access via the Google Play music store is also available directly via Google Now.
According to comments on the Google+ posting noting the feature, it appears that it may currently be exclusive to users in the United States.