Every May since 1958 in order to promote postwar peace, Europeans passionately listen, debate, then vote in a contest that convulses the continent.
No, not on a political issue, but pop music, in the world's biggest singing contest, called Eurovision.
But this year, competing visions of Europe are central to an election to determine the direction of another postwar attempt at peace — the European Union. And this vote is eliciting a somewhat similar response, as a usually placid electorate has become electrified about the European Parliament.
The twice-a-decade elections for the 751-member Parliament that helps sets direction for the E.U. has been jolted by the rise of far-right populists who have united against the union itself, or at least what they see as its heavy-handed ways.
Turnout is expected to increase for the election, which began on Thursday and ends on Sunday, reflecting the stakes for the E.U., the U.S. and indeed the world in the first parliamentary vote since the height of the migration crisis, the Brexit referendum and serial fiscal crises due to sclerotic economies.
"The forces of nationalism, the forces of populism and the forces of integrationism — are all at play in these elections, and that's why they matter for the future of the E.U.," said Célia Belin, a visiting fellow at the Brookings Institution's Center on the U.S. and Europe.
"Anxieties at the global level — the rapid evolution of the world with financial globalization, and new technologies, and mass mobility, and increasing inequalities — all of this has deepened the sense in people of powerlessness," Belin said. Added to that is the feeling of "losing control at all levels of government, national or European, and so by uniting in these national, sovereigntist, far-right parties they hope to reassert their local power and regain control."
Those uniting against the union's role reflect populist movements led by the likes of Italy's Deputy Prime Minister Matteo Salvini, the pied piper of populists who has rallied fellow travelers across the Continent. They include National Rally (formerly National Front) leader Marine Le Pen of France, the Netherland's Geert Wilders, and the U.K.'s Nigel Farage — the Brexit Party leader whose push for Britain's E.U. exit has now pushed out Theresa May, the prime minister whose inability to strike a Brexit deal led to her resignation announcement on Friday.