A look at what goes on backstage during the last broadcast of America's most celebrated radio show, where singing cowboys Dusty and Lefty, a country music siren, and a host of others hold court.

• Sandcastle 5
• Prairie Home Productions
• Meryl Streep
• Lily Tomlin
• Lindsay Lohan
• Garrison Keillor
• Woody Harrelson
• John C. Reilly
• Virginia Madsen
• Kevin Kline