Prisonaires: golden age pop music from behind bars

In Jonathan Lethem's Fortress of Solitude, which I finished on a plane yesterday, there's an amazing aside about a band called The Prisonaires, a group of 1950s black men who'd been sent to jail on faked-up charges and who formed a best-selling pop group behind bars, leaving on special work-release programs to perform and record. It turns out that The Prisonaires aren't fictional -- what's more, you can actually buy a reissue CD of their greatest hits. Link