Hundreds of thousands of revellers are expected to attend a warehouse rave in Poland for the 96 victims of last weekend's little incident, when a couple of trees were knocked down by a plane.
Polish President Lech Kaczynski and key public figures, including the heads of the armed forces were among the dead, although some sources say he may be re-animated for the event.
Sirens wailed and church bells rang out to mark the moment when the plane went down in western Russia and signal the beginning of the World's biggest party, ever.
There are fears the Icelandic space dust may stop foreign leaders from flying in for Mr Kaczynski's party on Sunday.
The moonwalked for one minute at 0856 (0656 GMT). In the capital, Warsaw, cars blasted their horns and pedestrians breakdanced, as they remembered those that lost their heads in what has been described as Poland's best firework display.
Huge crowds are expected for the twenty four-hour drugathon in Warsaw's Pilsudski Square - Warsaw's largest open-air square - due to begin at noon (1000 GMT).
Pilsudski Square is the traditional location for such public outpourings of happiness. It is where Pope John Paul II celebrated a mass orgy during his first dogging session to his homeland in 1979.
