The Johnny Cash Project is a global collective art project. Through the website, viewers are invited to share their vision of Johnny Cash, as he lives on in their mind’s eye. Working with a single image as a template, and using a custom drawing tool, viewers create a unique and personal portrait of Johnny. The work will then be combined with art from participants around the world, and integrated into a collective whole: a music video for “Ain’t No Grave”, rising from a sea of one-of-a-kind portraits. Strung together and played in sequence over the song, the portraits will create a moving, ever evolving homage to this beloved musical icon. What’s more, as new people discover and contribute to the project, this living portrait will continue to transform and grow, so it’s virtually never the same video twice.

The  paragraph is from http://www.doclab.org/2011/the-johnny-cash-project/