Since the first in London, productions have been organised around the world, Ireland, Australia, New Zealand and Canada. While individual in character, they share the ethos of Reader's concept and have common elements, often including a finale performance of "Crest of a Wave". In 1958 Reader went to Chicago to produce and direct the first Gang Show in America. He returned to Chicago next year to guide the second. Reader first went to Chicago in 1920 as a teenager and began his stage career there. Newcastle Gang Show started in April 1937 followed by Peterborough Gang Show in November 1937 and apart from the war years has run ever since. Harpenden Gang Show has performed every year since 1949, making it the longest continuously running Gang Show in the world. In the United States, the only known Gang Show in existence is performed annually in Derby, Connecticut, produced by BSA Troop 3, Pack 3 and Venture Crew 33 since 1924, also making it one of the world's oldest continuous Gang Shows. Gang Show spin offs In some countries an over-18 only show often referred to as a Bag Show are produced, often with a dinner and a more cabaret style and with more adult content such as risque jokes and burlesque elements. This is done for Rover Scouts and leaders. In Melbourne, Australia the Showtimes came out of the strong theatre culture of the area. These are smaller than the local Gang Show, with the exception of Whitehorse Showtime which is actually the largest show in the Southern Hemisphere, originally pulling from a single district to produce a show. Currently there are four of these shows; Whitehorse Showtime, South Metro Showtime, Camberwell Showtime and Strzelecki Showtime. Because these showtimes are not Gang Shows, they do not have the red scarf instead choosing a different colour, such as Strzelecki Showtime's gold scarf. Signature tunes "On the Crest of a Wave" has become the signature tune throughout the world and is usually performed at the end. It may be sung as just the chorus (traditionally twice, the first time with gusto, the second part-quiet and staccato, part with gusto once more) but there are also two verses. "A Touch of Silver" (sometimes referred to as "Silver on the Scarlet"), written by Reader and Brisbane Gang Show producer Hugh "Kirra" McKee, is the signature tune of the Brisbane Gang Show and may be