My IPod touch won't play music.

The music won't play out of my IPod touch. The speaker works just fine when I am on Youtube or an App the uses sound effects. When i try to play music the pause/play button will work, but I cannot hear the music. And, Common sense I did already try to turn the Volume up and down. I recently updated my IPod to the IOS 5 update and then the day after i whent to ITunes and got all my picture/Files that i had ITunes back up. Once i tryed to play music after that i couldnt get it to play. Thinking that it was a speaker problem I tryed going to Youtube and the songs/Videos played just like Normal. I whent to ITunes and conncected my IPod to see if that had anything to do with my problem and it did not. I've have also tryed turning it off and turning it back on, and that didnt help. Then the last thing is I also tryed to play music through Headphones and the music still didnt play, and i connected it to a docking station and tryed to play music and that still dindt work. Help?