Sam Bush has got some nerve

Nervy cover of the day: Mandolinist nonpareil Sam Bush, on the Mustang Stage where the most staunchly traditional acts have played, dusts off Randy Newman's 1974 chestnut "Mr. President (Have Pity On the Working Man)." More than three decades and six chief executives later, it remains frighteningly, hilariously on target. And a gutsy move in front of a hard-core country crowd.

-- Randy Lewis

Photo by Karl Walter / Getty Images