Actress from Chicago Musical?

Question: Actress from Chicago Musical!?

Can anyone give me the name of the actress that appears on the various Chicago posters around the London area!? A picture of the poster can be found here:

http://www!.westendtheatrebookings!.com/sh!.!.!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

The name of the role portrayed is Roxie Hart !. Call the theater and ask who is playing that role and if they are featured on the Bill board posters!.Www@QuestionHome@Com