Read this: The song was released as a digital download on 25 September 2015. It received mixed reviews from critics and fans, particularly in comparison to Adele's "Skyfall". The mixed reception to the song led to Shirley Bassey trending on Twitter on the day it was released. It became the first Bond theme to reach number one in the UK Singles Chart. The English band Radiohead also composed a song for the film, which went unused.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What former Bond theme singer was the subject of extensive activity on Twitter when the Spectre theme was released?
Shirley Bassey