Is it normal to need music?

In class we were learning about addictions, and for extra credit the teacher had us give up something we consider ourselves addicted to for two weeks. A friend and i decided to give up purposely listening to music. However i failed that same day and knowing that i wouldn't be able to listen to music in a quiet area had me fixated on find some earphones to listen to music from. In other occasions during those two weeks i felt highly uneasy and found it nearly impossible to stay still or even concentrate...does this happen to anyone else?