Ernie Paik, writing in The Pulse (Chattanooga, TN) lists his “Top Ten Most Insane, Awe-Inspiring, and Memorable Live Shows of 2008.” He puts Robert Plant and Alison Krauss at #2. Ernie writes:

2. Robert Plant and Alison Krauss at the Memorial Auditorium
Raising Sand was a nice surprise, but to have Robert Plant and Alison Krauss actually play those songs live, here in Chattanooga, was nearly unbelievable. The excitement level was off the scale, with people immediately jumping out of their seats when they recognized the opening of a Led Zeppelin song, like “When the Levee Breaks.”