Singer heard in the first Lord of Rings movie?

The singer you're likely thinking of in the first Lord of the Rings movie, *The Fellowship of the Ring*, is Enya. She performed the song "May It Be", which plays during the closing credits.

While there are other songs in the film, "May It Be" is the most prominent and memorable, and the one most associated with Enya's contribution to the Lord of the Rings soundtrack.