Robert Plant performs at The Roundhouse venue in Camden, north London, during the BBC Radio 2 Electric Proms concert Friday Oct. 29, 2010. (AP Photo / Yui Mok, PA) ** UNITED KINGDOM OUT - NO SALES - ... more 
Robert Plant performs at The Roundhouse venue in Camden, north London, during the BBC Radio 2 Electric Proms concert Friday Oct. 29, 2010. (AP Photo / Yui Mok, PA) ** UNITED KINGDOM OUT - NO SALES - NO ARCHIVES - EDITORIAL USE ONLY ** less 
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Associated Press
Fri, Oct 29, 2010 7:00 PM EDT