Monty Python's Spamalot is a musical comedy "lovingly ripped off from" the 1975 film Monty Python and the Holy Grail. Like the film, it is a highly irreverent parody of the Arthurian Legend, but it differs from the film in many ways, especially in its parodies of Broadway theatre. Eric Idle, a member of the Monty Python team, wrote the musical's book and lyrics and collaborated with John Du Prez on the music. The original 2005 Broadway production, directed by Mike Nichols, won three Tony Awards, including the Tony Award for Best Musical of the 2004–2005 season and received a total of fourteen Tony Award nominations.

On March 22, 2006, to mark the first anniversary of the official Broadway opening of the show, the "World's Largest Coconut Orchestra" (consisting of 1,789 people clapping together half coconut shells) performed in Shubert Alley, outside the theatre. The claim was officially recognized by the Guinness Book of World Records. This record was then broken by 5,567 people in Trafalgar Square at 7pm on 23 April 2007, led by the cast from the London production, along with Jones and Gilliam, with the coconuts used in place of the whistles in "Always Look on the Bright Side of Life". This formed part of London's St George's Day celebrations that year and was followed by a screening of Monty Python and the Holy Grail.