You're probably seeing the shared iTunes library from some other computer on your local network. Go into the iTunes Sharing preference and turn off "look for shared music". If you don't want to similarly be sharing your iTunes library with other computers, make sure that the "Share My Music" option is unchecked.
Forum Tip: Since you're new here, you've probably not discovered the Search feature available on every Discussions page, but next time, it might save you time (and everyone else from having to answer the same question multiple times) if you search a couple of ways for a topic, both in the relevant forums and in the
User Tips Library before you post a question.
Regards.
