No Sound But a Heart is the eighth studio album by Scottish singer Sheena Easton, released in 1987 on the EMI America label. The album was issued in the Canadian, Mexican and Asian markets. The album consists of midtempo and ballad songs, including the single and video, "Eternity", written by Prince. The disc features Steve Perry from Journey on backing vocals on "Still in Love" and a duet with Eugene Wilde on "What If We Fall in Love".

"The Last to Know" is a song by Scottish singer Sheena Easton, inluded on her 1987 album, No Sound But a Heart. It was written by Brock Walsh and Phil Galdston, and produced by Nick Martinelli. Easton's album was not commercially successful and songs from No Sound But a Heart were later covered by other artists. "The Last to Know" was recorded by Canadian singer Celine Dion for her 1990 English-language debut album, Unison.