sentences:  The company includes LaToya London as Nettie, Michelle Williams as Shug Avery, Felicia P. Fields as Sofia, and Jeannette Bayardelle as Celie, Stephanie St. James as Squeak.Bayardelle and Fields both are reprising their roles from Broadway.The show exceeded expectations, which necessitated a four-week extension of its Chicago engagement until September 30, 2007.