VIENNA, Austria (AP) – It might be a good time to make strategic use of a yellow card.

New York contemporary artist Spencer Tunick has gained notoriety worldwide for photographing thousands of people in the nude. Now he's planning to pack a Vienna soccer stadium with 2,008 naked fans in the run-up to the Euro 2008 tournament.

Austria's national railway said yesterday it will offer free travel to the first 2,008 men and women who sign up to bare it all for the May 11 spectacle, which will be held rain or shine.

Tunick wants to pose them on the field inside Ernst Happel Stadium, where the tournament final will be played. Austria and Switzerland are co-hosting the event, which runs from June 7-29.

"2,008 naked people would be super!" said Katharina Murschetz of Kunsthalle Wien, a prestigious Vienna art exhibition center that is organising the mass-nudity display.

Murschetz said the Austrian capital thinks Tunick's unusual genre is perfect for the European soccer championship "because he spreads a strong sense of community spirit" in the same way that the sport does.

"This very special ephemeral installation that we are inviting you to be part of is devised to capture and combine the spirit of sports, the grand sweeping waves of stadium architecture and the abstract relation of the human form to modern structures," organisers said in a statement.

Murschetz said it remains unclear exactly how Tunick will pose his 2,008 subjects: "He'll communicate that only moments before the installation," she said.