If you uploaded a track for a specific week, and either you messed up and forgot to actually submit the form, or the server exploded and for some reason the song is gone... Please post here and we'll try to get you a private link to re-upload it for the given week. Be sure to tell us what week # was messed up in your post!
Also, this does not include users who's song was deleted due to copyright issues or whatever else.
Hey something messed up on my Week 10, Song name: Blah blah beats.