PICS! 'Step Up Revolution' star Kathryn McCormick flash mob in Chicago!

Just-published SIZZLING-HOT photos of "Step Up Revolution" star Kathryn McCormick along with some of Chicago's most talented dancers from Boom Crack! Dance Company! They recently performed a live flash mob at Chicago's Navy Pier in anticipation of the new film, which opens this Friday! YOU CAN'T MISS THESE PICS!

http://www.hollywoodchicago.com/news/19305/exclusive-slideshow-kathryn -mccormick-step-up-revolution-flash-mob-chicago-navy-pier