A Prairie Home Companion is calling it an "historic first."
Garrison Keillor will step aside for one show, and let someone be the guest host.
The singer and fiddler Sarah Watkins will take a turn out in front, while Keillor watches his show from the sidelines, until it's time for the news from Lake Wobegon. He'll still deliver his signature monologue.
Sarah Watkins joined All Things Considered host Tom Crann to talk more about this upcoming "experiment."