The Philips Pavilion was a World's Fair pavilion designed for Expo '58 in Brussels by the office of Le Corbusier. Commissioned by electronics manufacturer Philips, the pavilion was designed to house a multimedia spectacle that celebrated postwar technological progress. Because Le Corbusier was busy with the planning of Chandigarh, much of the project management was assigned to Iannis Xenakis, who was also an experimental composer and was influenced in the design by his composition Metastaseis.

Expo 58, also known as the 1958 Brussels World's Fair, was a world's fair held on the Heysel/Heizel Plateau in Brussels, Belgium, from 17 April to 19 October 1958. It was the first major world's fair registered under the Bureau International des Expositions (BIE) after World War II.