so I have like 4 albums in the collection that say unknown artist on my galaxy nexus and I cannot figure out why. In itunes everything shows up fine, as well as when I put a usb drive with my music into my car radio. For my phone though they show up as unknown artist, they're just regular mp3s, no drm or anything. I tried deleting the artist name and renaming it in itunes so it would rewrite the mp3 file, but that didn't do anything. Any thoughts?