Each day Lavender, 57, wears the same purplejacket with red lapels to help clients pick him out of the crowd as he trades contracts for ten-year Treasury note futures.
To start her show, Madonna emerged from a giant glitter ball to sing first number Hung Up, dressed in an all-purple ensemble of jacket, velvet pedal pushers and knee-high boots.
The jacket was soon discarded, revealing a tight purple vest top underneath as the newly restyled disco queen accompanied her songs with frenetic dance routines.