Because heavy metal is harder than rock.
IDK, i'm just a banana.
When an accordion is thrown down the toilet without it touching the sides.
A can opener.
Nighty Night
Rock and Heavy Metal
I rock. You Rock. We Rock. Disclaimer: This joke was made during a 6 hour road trip with the family. My only scenery was rocks.
Heavy metal.
Heavy Metals.
You get stoned.