David Archuleta, who is a member of the Church of Jesus Christ of Latter-day Saints (Mormon), sings the Mormon hymn "Be Still My Soul" at a Mormon Church.
Music by Jean Sibelius, 1899
(Originally Composed as Finlandia)
Lyrics by Katharina von Schlegel, 1752
Go to mormon.org to learn more about what Mormons (and David) believe.