Monty Python's final performance in three weeks' time will be broadcast live in more than 100 countries around the globe.
The five surviving members of the iconic comedy troupe will stage a run of 10 shows at London’s O2 Arena with the first Monty Python Live (Mostly) gig opening tonight.
Fans can expect dancers, a full orchestra and a cross between theatre and a rock concert, after the Pythons dropped hints at a press conference yesterday.
"It is a world event and that’s really quite exciting," said Eric Idle.
"It means we're actually going to say goodbye publicly on one show. Nobody ever has the chance to do that, the Beatles didn't get a last good night."
Monty Python, bar Graham Chapman who died in 1989, have admitted that they are reuniting due to financial incentives, but also for their widespread fanbase.
John Cleese confirmed that "the one on the 20th really is the last show and I think we all feel very content with that".
There will be no new material and plenty of classic, reimagined sketches, but surprise guests have been lined-up including Stephen Hawking and Professor Brian Cox.
Sir Mick Jagger and Charlie Watts of The Rolling Stones teamed-up to film a promotional clip ahead of the hyped reunion of "a bunch of wrinkly old men trying to relive their youth and make a load of money".
David Walliams is also on board to conduct red carpet interviews on the final night of the tour in a Last Night of the Proms style.