Wigfield, the performance-piece-slash-book-tour by Strangers With Candy and Second City alumnae Amy Sedaris, Stephen Colbert, and Paul Dinello, kicks off its tour in Chicago this weekend. All four shows at the Chicago Center for the Performing Arts are sold out, so start praying to the scalping gods now. If you miss it, you can always catch the Roadworks production of The Book of Liz, written by Amy and her brother David Sedaris. It opens next week at the Chopin.