Is there an app I can download to my iphone for music?

I was wondering if there's an app for the iphone where you can download music & it goes to the music app, I have an app that I can download music from but I have to go to that app to listen to the music. Any suggestions?

Spotify.

That question is really broad. Do you mean to download and keep the music locally on your iphone? Or stream music over the internet and listen to music? Well either way, there are applications that let you do both. One is of course iTunes on your phone. That lets you get music in your phone. Also if you want to just stream music you can use 8tracks(application) or Pandora(application), Audiogalaxy(application) so on and so forth. If you want more info go to:

http://lifehacker.com/...our-iphone