Hundreds of protesters covered in grey clay walked through the streets of Hamburg ahead of the G20 Summit
Organisers said the goal of the performance was to give people the motivation to get politically engaged.
We want to create an image because we believe in the power of images...we want to motivate people to take part. To free themselves from their crusted shells, to take part in the political process," one of the event organisers, Catalina Lopez told Reuters TV.
More than 100,000 anti-capitalist demonstrators, including several thousand left-wing extremists, are expected to descend on the streets ahead of the two-day summit which opens on Friday.
In the weeks leading up to the summit, police cars have been burned and train lines have been sabotaged.