Formed in 1995 by Sister Bliss, Faithless is a London, England, United Kingdom-based group of musicians whose music is described by one of their band member as a cross between trip-hop and techno. The four original members of Faithless were rapper Maxi Jazz, Sister Bliss, instrumentalist/vocalist Jamie Catto and producer Rollo Armstrong. Jamie Catto (now in 1 Giant Leap) left after their second album, Sunday 8pm, which was released in 1998. Rollo Armstrong's sister Dido also features on several Faithless tracks.