She toured the United States, Morocco, the Netherlands, and Finland with the group, and she has sung with the choir and featured as a soloist on six of their albums: Invocation (2001), Winter Songs (2001), Behind the Closed Eye (2002), Sensation (2006) "Illumination" (2012) and "Revelation" (2015).
In 2007, longtime Celtic Woman member Méav Ní Mhaolchatha decided to leave the group to focus on her solo career.
As a result, Hilary joined the group in time to feature in the A New Journey tour, which started on 10 October 2007 in Estero, FL.
On 14 February 2014 it was announced that Lynn would be returning to Celtic Woman for their Emerald tour in March while Lisa Lambe goes on a short 'leave of absence.'
She was a member of a musical group called Babylon Sisters which featured Lisa Nolan, and fellow Anúna singer, Rebecca Winckworth.
"[10] The album represents a reflection of upon the first thirty or so years of one's life and the opportunity to transform oneself based on the lessons learned.