Can you listen to music privately without headphones on the iPhone?

I know there are ways on my old simpler phones to listen to music, not out loud, through the part that you'd here someone on the phone through. Is there a way to do this on the iPhone? I've got a long bus ride if not.

No, unless you have those super expensive wireless beats! I'm sorry, but it sounds like you'll have to use headphones to avoid being or sounding rude the whole ride: P trust me, I know your pain!