I know there can never be a winner, but it might be fun to take nominations for the best song and best performance in musical history. I'll offer as the first nomination this video of Procol Harum performing A Whiter Shade of Pale with the Danish National Concert Orchestra and choir at Ledreborg Castle, Denmark in August 2006. An absolutely magnificent performance of one of the greatest songs ever recorded. I wish it was in HD, but the only HD version I found didn't have the orchestra opening, which is a major part of the performance.
