Muffled sounds

So I'm sitting in my room studying last night, and all of a sudden I hear a rather familiar tune come from my neighbors who share my back wall.  It was so funny, because I totally recognized the song, even though it was a little muffled.  It was that new Maroon 5 song.  It made me laugh, because it's one I've been listening to a lot lately.  It also made me wonder what my neighbor may hear on her side of the wall...  I'll be honest, I make some interesting noises, mostly because I think that no one can hear me!  (Singing, laughing, screaming, you get the picture!)  Anyways, I've brought back the playlist, just so you guys can experience the musical fun I have at my place!