Terry Gross

The stand-up comedian says it's hard to pull off jokes about being rich, but "just because you're doing well in life doesn't mean you can't complain, too." Rock's latest project is a film called 2 Days in New York, in which he plays half of an interracial, multinational couple hosting relatives from France.

Listen to an in-studio concert and conversation with the Canadian singer and her longtime guitarist, Jordan Officer.

Keegan spent his life studying war, but he never fought in one and described himself as more or less a pacifist. The British military historian, who died last week at age 78, chronicled the history of warfare from Alexander the Great to the U.S. invasion of Iraq.