I'm in the media player menu. I play a song, grooving to it. I press the back key to get out of there. The music player is still playing. I'm playing around on my home screen look at my pretty icons. I decide to turn my music off but don't want to find the media player screen, then the music screen then the now playing screen and pressing "close." is there a faster way to turn the music off from the homescreen? a shortcut key perhaps?