The song When You Say Nothing At All has been a hit for Alison Krauss and then Ronan Keating, covering the original recorded by the late Keith Whitley.
Whitley died soon after recording the song, with Krauss’ rendition being part of a tribute album to Whitley’s career, a quite unintentional hit.
Here’s Whitley’s version.
And Krauss’
And a mix of the two as something of a duet.