Watch Pink Floyd Fan Benedict Cumberbatch Sing “Comfortably Numb” With David Gilmour

On Wednesday, September 28th 2016 David Gilmour performed Comfortably Numb in London’s Royal Albert Hall and Benedict Cumberbatch joined him for the last song of the night. He’s quite a fan of Pink Floyd, as he wears their tour shirts on the movie sets and off-time.