A video two American priest's dance battle, tap versus Irish dance, has made them Internet sensation.

Reverend David Rider (29), of Hyde Park, New York, and Reverend John Gibson (28), from Milwaukee became wowed the crowd back in April at a fundraising event in the North American College - an American seminary in Rome.

First on stage (atop a piano by the looks of things) is Rider warming up the crowd with some tap dancing then Gibson takes to the stage with some seriously fast-footed Irish dance steps.