ORIGINALLY PUBLISHED IN THE GEORGIA STRAIGHT, OCT. 18, 2007 By Steve Newton You may be wondering what Led Zeppelin's grizzled old blues-metal crooner was doing making a collaborative CD with a country-roots superstar. Was Robert Plant hanging out with Alison Krauss so she would play fiddle on the newfangled Cajun version of "Stairway to Heaven" … Continue reading Album review: Robert Plant/Alison Krauss, Raising Sand (2007)