I use the term "Poltergeist" anytime something seems to happen for no reason, or when a supernatural being's own desire is to screw with me. Using the stock music player, and was playing the last song of the album. In the last 20 seconds another song from another album started to play over top of the other song. When the 1st song stopped playing, the music player indicated there was no other music playing. Using the volume rocker for the media volume didn't change the volume of the 2nd song! It didn't stop until I pulled down the notification bar. I'm sure it was a minor eff up in the software. Anyone else have this happen? And YES, I am aware of other music players out there, I just don't use enough to justify adding another app.