21 March 2011
Roger Waters commenced his 64-date Wall Live tour of Europe at the Pavilhao Atlantico, Lisbon, Portugal.
12 May 2011
David Gilmour joined Roger Waters on stage at the O2 Arena in London performing Comfortably Numb as part of
Roger Waters' Wall Live show. Nick Mason also attended the show, and both Nick and David joined Roger for the
final song, Outside The Wall, on which Roger played trumpet, David mandolin and Nick tambourine.