Complex sentence: Basement Jaxx started in Brixton, South London in 1994, where they held a regular night club called Basement Jaxx, which was also held in a variety of venues including The George IV, The Crypt and The Junction.
Split into simpler sentences: Basement Jaxx started in Brixton, South London in 1994, where they held a regular night club called Basement Jaxx. Held in a variety of venues including The George IV, The Crypt and The Junction.