An angelic sweetness that can easily turn into a primal howl, Sinéad O'Connor's voice has, to me, always been the voice of Celtic women everywhere. It becomes even more powerful when she's singing about the history of her own people.
Oró Sé do Bheatha 'Bhaile is a rebel song dedicated to the great sea warrior, Gráinne Ní Mháille, better known as Grace O'Malley, pirate and patriot.
Molly Malone is a song that most everyone has heard and can sing along to, Irish or not. Sinéad's version, however, is haunting - as it should be.
(as a side note: sifting through videos of Sinéad and Dolores O'Riordan of the Cranberries is really making me reconsider my attempts to grow my hair long again)