pepsi, cola, water? is a short experimental documentary about Sun Ra's legendary visit to Egypt in 1971. It is the final chapter of 1971, Sun Ra in Egypt a research project based on the life and work of the legendary African American jazz pioneer, mystic, poet, and philosopher Sun Ra that exists as a series of performances, lectures, installations, videos, art objects, and a related publication. The project takes as its starting point Sun Ra's 1971 visit to Egypt, and many of the related works playfully insert Sun Ra's life and legacy into the conceptual, pop, and minimalist zeitgeist of the New York art world of the 1960s and 1970s.

Every evening since 1961, multicoloured lights of changing intensity are directed against the facade of the pyramids and the sphinx, synchronized with a soundtrack by Halim El-Dabh and accompanied by a dramatized history of the site as narrated by Omar Sharif. Bogaert's video shows footage of the light show's technical setup amid a sci-fi-worthy lunar landscape. Playing with the colour and rhythm of these light shows in relation to Sun Ra's work and performance, Bogaert incorporates computer animation, music by Sun Ra, as well as archive footage.

The film had its world premiere in November 2015 at the International Competition of the Rio de Janeiro Short Film Festival – Curta Cinema, and was made in collaboration with Medrar for Contemporary Art in Cairo, Egypt and SoundImageCulture, the Flanders Audiovisual Fund and Didier Volckaert in Brussels, Belgium.