Marc Halls is the lead singer of Fei Comodo and also records as a solo artist. His solo project is presented under his own name, and the songs identified with it include “Concrete Lines” and “3 Years”.

Fei Comodo are associated with performances alongside InMe and Cradle of Filth, although their own sound is described as separate from those bands. The group also writes the theme music for Mighty Morphin' Emo Rangers, which appears on video-sharing sites including YouTube, Google Video and MySpace TV.