Paul McCartney was sighted this summer in Oklahoma City and also in Springfield, Illinois, while he and girlfriend Nancy Shevell were getting their kicks on Route 66 in a 1989 Ford Bronco. http://tinyurl.com/bzxg7m
When he was on Letterman's show a couple of weeks ago, he said he had always wanted to cross the US in a car traveling Route 66 and he did it. I live in Illinois near St Louis and it was on the St Louis news when he went through Springfield IL. I am glad someone got to see him.