Is there an app that will let me edit track information (title/artist)? I wonder if is there any app for the iOS 5 that will let me edit the artist or title of my music?

The music is currently synced through iTunes and stored in the music app, but please let me know if there are any alternatives. I am open to jail breaking the device if there are no other alternatives.
Given the rather strict sandboxing applied in iOS this is most probably impossible to achieve without jailbraking the device.