Highwaymen

The Highwaymen were a group of African-American artists in the '60s and '70s who sold idyllic paintings by the roadside of Florida's Route 1. Back then, they nearly saturated the market with their pictures, but today their work is sought after by the likes of Steven Spielberg and Michelle Obama.

When the officials at a Florida prison realized who Al Black was, they gave him a paintbrush and the walls as a canvas.