John Dadzie, better known by his musical alias 12th Planet, is a Los Angeles based dubstep producer and DJ.

12th Planet, born John Dadzie,grew up in Los Angeles and was first introduced to the electronic music scene in high school when he regularly attended raves and jungle parties. After forming Imperial Recordings with DJ Lith, he launched his production skills on his own terms, originally producing drum and bass under the alias Infiltrata. In 2006, he decided that he was going to make dubstep. It was then that his new alias 12th Planet was created, in reference to Zecharia Sitchin's book, 12th Planet. All production under the name 12th Planet is original. As one of the first individuals to bring the dubstep culture to America (in one of the USA’s electronic meccas, Los Angeles) 12th Planet has frequently been cited as the American Dubstep King.