Leo Mas started DJ career in Ibiza where he played at the Amnesia club (with Alfredo) during '85, '86, '87 and '88 (Summer of Love) and '90 (without Alfredo which played at Pacha). He is considered one of the pioneers of house music and balearic sound.
In 1989 at Movida (Italian club) he decided to have on his side, Fabrice and Andrea Gemolotto, to begin a project that was named Big Brother Productions a.k.a. The Triad. They started some record labels: Informal Records, Muzak, Pin Up, Models Inc., and Spock, related to various styles of house, techno and electronic music.

Dj Leo Mas, L., Leo Mass, Leomas