“p*ssy Riot” members Nadezhda Tolokonnikova (R) and Maria Alyokhina attend a roundtable discussion at Sziget Festival in Budapest, Hungary August 14, 2015. (Photo by Laszlo Balogh/Reuters)

Bianca Womer, 29, from Germany shows her tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

David Noel, 21, from Hungary shows his tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Sofie Foster, 30, from Belgium shows her tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Lea Chartier, 20, from France shows her tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Carl Bond, 25, from New Zealand shows his tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Sebastiano Benedetti, 23, from Italy shows his tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Fanni Kulik, 22, from Hungary shows her tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Peter Prechtl, 27, from Germany shows his tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Alexander Koko, 35, from Russia shows his tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Joonas Nikander, 24, from Finland shows his tattoo during the Sziget music festival on an island in the Danube River in Budapest, Hungary, August 14, 2015. (Photo by Bernadett Szabo/Reuters)

Lying in a hammock a young man smokes during the 23rd Sziget (Island) Festival on Shipyard Island, Northern Budapest, Hungary, early 14 August 2015. The festival is one of the biggest cultural events of Europe, offering art exhibitions, theatrical and circus performances and music concerts. Almost 200 performers from 47 countries will entertain the hundreds of thousands of visitors from 11 to 18 August. (Photo by Janos Marjai/EPA)

Members of the Frenak Pal Ensemble perform during their show “The Boys” in the Theater and Dance tent at the 23rd Sziget (Island) Festival on Shipyard Island in Budapest, Hungary, 13 August 2015. (Photo by Zsolt Szigetvary/EPA)

A girl plays with colourful papers at the 23rd Sziget (Island) Festival on Shipyard Island in Budapest, Hungary, 13 August 2015. (Photo by Balazs Mohai/EPA)