In what year did Susan McFadden join the Celtic studio group also featuring Mairead Carlin and Tara McNeill?
Celtic Woman: Voices of Angels:  "Voices of Angels" features vocalists Susan McFadden, Mairead Carlin, Éabha McMahon, and fiddler Tara McNeill, with former member Méav Ní Mhaolchatha as a guest. Susan McFadden:  She has also been a member of the all female Celtic music group, Celtic Woman, since 2012.
2012