Pharrell Williams has created a new song but with a twist to its release date - we won't be able to get our hands on it until 2117.

The only copy of the song has been engraved on clay vinyl and locked away in a special water-vulnerable safe. Williams collaborated with the alcohol brand Louis XIII Cognac on the track "100 Years – The Song We'll Only Hear If We Care" and hopes to raise awareness of global warming. He said:

"It's an artistic project that will disappear forever if global warming continues.

"I love the fact Louis XIII thinks a century ahead. We should all do the same for the planet. And, well, if in 2117 they indeed listen to my song, it means something went right."

Watch the enormously talented Pharrell Williams in action, below: