To celebrate National Train Day 2010, bluesman Bobby Rush joined 2 sons of Muddy Waters on the Legendary "City of New Orleans" train to Chicago.

Following a late-night jam session on the train, the blues legends played a frenetic set in the Great Hall at Chicago Union Station.

Photographer Bo Gray hopped aboard this unforgettable journey and brings readers along with his up-close-and-personal photographs of this memorable event.