Who can identify this collection of sci-fi (or spec-fi) short stories that I read (in Britain) in the late '80s or early '90s?
One story was about a rock singer called "Masked Granny". She was apparently an old woman in a mask, who refused to take off the mask, and got violent if anybody tried. She started a fashion trend where children wanted to be old, and would go out to get their spines bent ("the Bender"), or perhaps to get wrinkles in their skin, etc. The story mentioned other music fads that had come and gone, such as "monotone" (where they only played the same note repeatedly).
Another story (I think in the same book) involved a young person who was recruited to be in a TV advertisement for a product. He/she got an eerie feeling from the television camera, like hypnosis, and was gradually "hypnotised" by the camera, and by the end of the story had become insane.
I very vaguely recall that one other story may have involved an animal in a zoo.