 Complete the following phrase:  Karen Matheson OBE born 11 February 1963 is a Scottish folk singer who frequently sings in Gaelic. She is the lead singer of the group Capercaillie and was a member of Dan Ar Brazs group LHéritage des Celtes, with whom she often sang lead vocals, either alone or with Elaine Morgan. She and Morgan sang together on the Breton language song Diwanit Bugale, the French entry in the 