Encompassing a diverse range of sounds and styles, the critically acclaimed, multi-million selling collective Faithless are hard to categorise.

Formed in 1995, and consisting of Sister Bliss, Maxi Jazz and Rollo Armstrong, their albums feature everything from house hits (Insomnia, God Is A DJ) soulful, poetic works (Muhammad Ali) and gospel anthems (Don't Leave).

Following the release of their controversial single Mass Destruction, their fourth LP, No Roots, released in June, marked a new direction for the band.

Possessing an encyclopaedic knowledge of electronic music, classically-trained pianist and superstar DJ Sister Bliss is the musical engine driving the group, and is largely responsible for the record's sound.

"We wanted to do something different," explains Bliss. "We tried to make it like a symphony and although it has individual tracks, they are all played in the key of C, so it flows. It's very electronic, offering old school, housey beats with a fresh sound.

"The album is about love in every possible way - when it's present and when it's not. We felt it was a platform to say something about what's going on today and a chance to make a stand."

Charismatic Buddhist frontman Maxi Jazz was the perfect person to express these ideas. His faith informs his philosophical lyrics, in which he dissects human nature and the state of the world.

"I try to attack people's hearts, because your heart is your most powerful organ," says Maxi. "But this is definitely a hearts and minds album. I want people to stop, look, see, think."

Head of Cheeky Records and older brother of pop phenomenon Dido, Rollo is the band's producer, an eccentric figure who doesn't perform live because he admits he can't play an instrument or dance.

Responsible for turning Bliss's musical sketches into works of art, he is fiercely proud of their latest album and believes it epitomises the group.

"There's not a note I would change," says Rollo. "This is what I think Faithless is about. It is melodic, it grooves, it's meaningful and it embodies the idea that self-worth creates goodness.

"That is fundamental. If you believe in yourself and if you are without fear, then you will also be tolerant, non-aggressive and find love."

Amen to that.

Starts 7.30pm, Tickets £19.50 (sold out), Tel 0870 900 9100