The first European visitor to Western Australia was the Dutch explorer Dirk Hartog, who visited the Western Australian coast in 1616. The first European settlement of Western Australia occurred following the landing by Major Edmund Lockyer on 26 December 1826 of an expedition on behalf of the New South Wales colonial government. He established a convict-supported military garrison at King George III Sound, at present-day Albany, and on 21 January 1827 formally took possession of the western third of the continent for the British Crown. This was followed by the establishment of the Swan River Colony in 1829, including the site of the present-day capital, Perth.
"Showdown" is the fourth single and first track from the album In Silico by Australian drum and bass band Pendulum. It has been remixed by several artists, including DJ Clipz, Excision, and Redlight. It is also the first single taken from In Silico not to use the album logo prominently on its cover.
The single was originally released through various online music stores on 5 January 2009. It was not available in any physical format until 9 February, when Warner Music UK released the 12"picture disc of "Showdown". To help promote the single, Pendulum also released a Space Invaders themed video game which offered players a chance of winning an official framed gold disc of In Silico.