The Irish Priest

The London Mayday parade passes down the Strand greeted by serial protester Neil Horan doing an Irish jig with his banner.

"Cornelius "Neil" Horan, sometimes referred to as The Grand Prix Priest or The Dancing Priest is a laicized Irish Roman Catholic priest who is noted for his interference with the running of the 2003 British Grand Prix and the 2004 Summer Olympics men's marathon in order to promote his religious belief that the end of the world is near.

He went on to appear on Britain's Got Talent in May 2009. He danced a soft jig on the show, received a standing ovation by the audience and was put through to the next round."

Wikipedia