Monty Python and the Holy Grail work, "Spamalot". They owed a combined £800,000 in legal fees and back royalties to Forstater. To help cover the cost of these royalties and fees, the group arranged and performed in a stage show, "Monty Python Live (mostly)", held at The O2 arena in London in July 2014. Monty Python and the Holy Grail Monty Python and the Holy Grail is a 1975 British independent slapstick comedy film concerning the Arthurian legend, written and performed by the Monty Python comedy group of Graham Chapman, John Cleese, Terry Gilliam, Eric Idle, Terry Jones and Michael Palin, and directed by Gilliam and
One Song to the Tune of Another Christmas specials (requiring "One Carol to the Tune of Something Else" — in particular, singing "Silent Night" to the tune of "Tequila"), and a variant was played in the 2007 special "Humph In Wonderland", in which panellists sang a Lewis Carroll poem to the tune of a song. Tim Brooke-Taylor and Graeme Garden sang "Jabberwocky" to the tune of "Jerusalem", and Andy Hamilton and Rob Brydon sang "You Are Old, Father William" to the tune of "I Know Him So Well". Occasionally, some of the panellists imitate backing singers for the panellist actually singing when there is a suitable gap