Earlier today I had to restore my iPhone, and it screwed some stuff up.
An iCloud restore got most of it working, but a few things were wrong. My apps were out of order (not in any folders), and a couple other minor things. No big deal though.
After syncing my music back, my iPhone keeps asking for a few different Apple ID passwords...since it keeps suggesting a few different Apple IDs, I am led to believe that I have music from a few friends that I previously had authorized, but now I need to re-authorize them.
Honestly, I'd like to just get rid of those couple songs (I have too many for one or two to matter probably). How can I find a song that has a certain Apple ID? Either in iTunes or on my iPhone, I don't care.
Well, I think I found a solution. It's annoying, but it worked.
I restored my phone and set it up as a new iPhone (instead of restoring from a backup). I have to re-enter all my settings, etc., so it takes a while, but I no longer have the Apple ID request popping up.