Cognac, France
In November 2017, Louis XIII partnered with Pharrell Williams to create "100 Years – The Song We’ll Only Hear If We Care" to be released in 2117. The song is a collaborative effort intended to draw attention to environmental issues and the unpredictability of the future. Pharrell’s track was recorded on a disc made out of clay from the chalky soil of Cognac, France, and played once for an audience of 100 in Shanghai, China. The disc was then locked in a specially designed Fichet-Bauche safe that protects it against everything except water from potential rising tides, which would dissolve the clay disc.