I recently upgraded from a Windows phone 7 to 8. I was extremely disappointed that I couldn't use the Zune software, but that is a different topic. Anyways I added a bunch of music which has all it's needed tags, but I noticed a few artist are missing. Their albums and songs are there and when you play a song it shows the artist's name, but their name isn't under artist. This is very annoying. How do I fix this?