This was London Sinfonietta playing "Remembering The Beatles", a tribute to the Sgt. Pepper's album. For each song they had a different guest singing or playing.
The Residents sung and "played" on "Being for the Benefit of Mr. Kite", whereas other songs featured Peter Murphy, Marianne Faithfull, Beth Orton and Jarvis Cocker. It all happend in Milan, Italy, on the 21st September 2007.