Does anyone know of a free App for iPad that will allow music streaming?

Has anyone here know of a free App for iPad that will allow one to listen to music from internet site [free music]. I am not after internet radio stations which I am aware of?
I do not want the video with it. I am aware of YOU TUBE where I could listen to any music with video on my iPad. However,due to broadband connection and restrictions at where I am, I could listen to music streaming...If I wonder possible with a way to listen to music from internet on my iPad using any Apps?

[Having my own music from cd's in my itune own account is not what i am after by the way]

I am very thakful for your help.

Regards

Have you tried App Store - Spotify

Thank you Chuckoir.
That is the kind I am looking for.. I will further read that to find out if
1. Will work in iPad
2. Would that work after 48 hours [It seems to suggests free for first 48 hours]
Regards

Pandora - although, I guess that would be an internet radio station.

I have Spotify and it is free on my Mac. Also have it on the iPad but haven't used it because the features I want require subscription.