Applications and websites like www.last.fm exist as social networking tools that bring listeners of the same types of music together.
Badge Me is a tangible, mobile version of www.last.fm, bringing this digital interaction into the real world. It connects between your mp3 player and your headphones to reveal the song you are listening to.
Would people be more inclined to start conversation with strangers knowing they listen to similar music? Would people change their playlist according to their environment or the people they are surrounded by, or to match what they are wearing?