PopUp is an urban culture festival taking place in Lisbon from November 4 to December 11. This year, it has the theme 'Urban Nomads,' and pigeons as its icon.

Torke was invited to take part in the exhibit as an artist, and also asked to develop a low cost and high impact stunt to advertise the festival. Since the connection between PopUp and the pigeons is well advertised, Torke chose to use what is the most spread around the city by the birds: their feces.

Thousands of pigeon poop stickers were put on cars, ATMs, stores and even people near the places where PopUp will happen. Nothing escaped this true artillery; Torke was more efficient then the pigeons themselves.