If Helen Mirren can't get Britain's notoriously rowdy cycling crowd to zip it, who can?
The woman whose icy glare in The Queen buckled knees in theaters all over the globe is one of several famous British faces who appears on a quick video that is played sporadically at the Velodrome to quieten the crowd before the start of a race.
Mirren, actor Simon Pegg and musician Gary Barlow are among those shown holding their finger to their lips and giving a loud "Shhhhhh!"
In one of the versions, Mirren is the last face to appear. She leans forward slightly and sternly says, "Button it."
It's worked every time.
AP