Unlike the fictional kryptonite, jadarite is white and powdery, emits no radiation, and comes from a region in Serbia.

A look back at a selection of the singer's appearances on a range of BBC shows - from her first Top of the Pops appearance ...

Dr Prateek Joshi, a radiologist working in London, his wife, Dr Komi Joshi, a pathologist working in Rajasthan, and their ...