A blonde walks in to a barber shop wearing a couple of headphones. She specifically tells the barber not to take them off while he's cutting her hair.
The barber starts to cut her hair, but after a while he really needs to remove the headphones in order to continue his work. So he removes the headphones from the blondes head and she drops dead on the floor.
Without a clue to why she suddenly died the barber picks up the headphones and hear:
"Breathe in, breathe out, breathe in, breathe out..."