Not to continue the derail in too egregious a way, but I was lucky enough to attend John Williams' concert in Milwaukee back in 2014, and it was an absolutely spectacular night. Fantastic mix of his biggest hits and some under-appreciated deeper cuts (THE COWBOYS was a particular highlight). He came back for three encores, as well (including the "The Imperial March"). His little anecdotes introducing the pieces were quite charming, and the amount of energy required from a then-82 year-old man to conduct an orchestra for two hours was very impressive. Williams' music means an incredible amount to me, so it was an extremely memorable experience.