In 2004, Olivier Grégoire aka Kolombo produced many electro house EPs under the name "LouLou Players", with co-producer Djerom and vocalist Lotus, which were released on Sharam Jey's label, King Kong. Thanks to high sales, LouLou Players have also remixed many tracks for artists like Darren Emerson, Fatphaze, Dahlback & Ekenback, John Acquaviva, Remo feat Cheleonis R Jones, ...
Carried by his growing success, in 2005, again with Fabrice, he founded an independent electro label supported by Audiopolis Distribution. Called LouLou Records, Gregg uses the label to release his tracks, under the artist name Kolombo, his new solo project.
Kolombo allows himself to put out a wider variety of sounds, from dark electro to minimal, while keeping his electro house feel throughout his productions. Currently he is signing many tracks and remixes on labels like Strobe Music, Lektroklash, Color, Blu-Fin, Jackmoves, Dirty Dancing, Kitt Ball, Destination, Artminimal and many more.
Since September 2006, Kolombo joined Mugwump: a project where he produces music in collaboration with Geoffroy and Compuphonic. At the same time, he is managing to create a new record label with Marc Romboy from Systematic called "Vice versa Recordings".
To start off 2007, Kolombo signed with his friend "Compuphonic" 2 releases on Tiga's famous label Turbo and a Systematic project under his real name.