Hector Zazou 
L'Absence (2004)  vocals & lyrics on "Lies Will Flow"
Strong Currents (2003)  vocals & lyrics on "The Freeze"
Lights in the Dark (1998)  cello

BT
Emotional Technology (2003)  cello & vocals on "The Great Escape"

The Chieftains
Further Down the Old Plank Road (2003)  cello

Loreena McKennitt
Live in Paris and Toronto (2001)  cello
The Book of Secrets (1997)  cello, viola da gamba, backing vocals
A Winter Garden (1996)  cello

Muse
Origin of Symmetry (2001)  cello

Nigel Kennedy
Kafka (1996)  vocals, co-wrote "breathing stone"

Radiohead
The Bends (1996)  cello

Various artists
A Week Into The Real World (1995) 
cello, vocals & giggling on Jam Nation's "She Moved Through The Fair"

Vangelis
Voices (1995)  vocals & lyrics on "Come to Me"

De Dannan
Ballroom (1993)  cello, vocals, arrangements

Peter Gabriel
Us (1992)  cello

Massive Attack
Massive Attack EP (1992)  vocals & cello on "Home of the Whale"

Information taken from the official home page www.carolinelavelle.com