If I record a song off the radio, am I stealing?
You can copy, cut and paste etc, anything you want as long as it is considered to be in the area of general knowledge. However, that is different from a one of a kind creative works are writings and art. But you really will not get in much trouble unless you try and claim the work of others as your own.
No, not if you record it for your own use only.
If you sing a song in your head, you’re stealing! </ riaa mode>