On 11 July 2010, Gilmour performed for the charity Hoping Foundation with Roger Waters in Oxfordshire, England. The performance was presented by Jemima Goldsmith and Nigella Lawson, and according to onlookers, it seemed that Gilmour and Waters had ended their long-running feud, laughing and joking together along with their respective partners. Waters subsequently confirmed on his Facebook page that Gilmour would play "Comfortably Numb" with him during one of his shows on his upcoming The Wall Live tour – Gilmour performed the song with Waters on 12 May 2011 at The O2, London and, with Nick Mason, played with the rest of the band on "Outside the Wall" at the conclusion of the show.