He is usually portrayed as a short, fat man with a bowler hat and Union Jack waistcoat. John Bull has been used in a variety of different ad campaigns over the years, and is a common sight in British editorial cartoons.
The cartoon image of stolid stocky conservative but well-meaning John Bull, dressed like an English country squire, sometimes explicitly contrasted with the conventionalized scrawny, French revolutionary sans-culottes Jacobin, was developed from about 1790 by British satirical artists James Gillray, Thomas Rowlandson and George Cruikshank.
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John Bull (around 1562 - March 12, 1628) was an English composer. He was a virtuoso keyboard player, and most of his music was written for the keyboard.