Paul Westerberg actually cracked a smile as The Replacments, who play their first Twin Cities show in a quarter century on Sept. 13, knocked the decades-old TV rust off with a frenzied, joyful romp through the Pleased to Meet Me single "Alex Chilton" on The Tonight Show Starring Jimmy Fallon last night. Watch it. Then watch it again. Then watch it again, again. Then, when you're done watching it all those times feel either extremely sad that you're not going the show at Midway Stadium this weekend or extremely excited that you are . . . Either way, have a strong emotional reaction.