Startup Idea : Share the audio stream of a phone over bluetooth

Imagine that you're travelling in a bus/train with your friend. Your friend has excellent taste in music. You want to listen to what you're friend is listening. Sadly, neither you not your friend has an audio splitter handy. And playing audio on phone's speaker is not an option in a public place. This app will allow you to share what you're listening to with your friends. It will work over Bluetooth. App should be available for ios, android and windows phone. Detailed description with look and feel of the app is described in this document. https://docs.google.com/document/d/1kJhKbJaoYOLDXfbpy4xlsxqaW0qcZjSiKsElgq48fJk/edit?usp=sharing