David Gilmour / Roger Waters/ Nick Mason / Richard Wright
July 2, 2005 at London's Hyde Park.

(" When I say original members, yes Syd was an original member, before David Gilmour. Comfortably Numb the song has all the original members that either sang , wrote or played are the original members for this song! ") Syd did not sing , play or write for this song.

David Gilmour . "Any squabbles Roger and the band have had in the past are so petty in this context, and if reforming for this concert will help focus attention, then it's going to be worthwhile."
See Full concert
https://www.youtube.com/watch?v=2K7TU1Hh_3U&t=3s