Mason is offering her new show, which is entitled Setting New Standards, through Feb. 14. She is accompanied by pianist Christopher Denny; Barry Kleinbort directs.

In a mass e-mail, Mason said, "Christopher Denny and I are doing six shows with new music (songs by Barry Kleinbort, Paul Rolnick, among others), new arrangements (well, of course!), and most definitely for all my friends in Chicago, I will be performing my song in Wonderland: 'Off Wit Their Heads!'"

Karen Mason has appeared on Broadway in Mamma Mia!, Sunset Boulevard, Jerome Robbins' Broadway and Torch Song Trilogy. Her Off-Broadway credits include And the World Goes 'Round and Carnival, and she has also been seen on the small screen in "Law & Order" and "As the World Turns." A seven-time MAC Award-winning performer, Mason has charmed audiences at Carnegie Hall, Rainbow & Stars, Davenport's and L.A.'s The Cinegrill. Her solo recordings include "The Sweetest of Nights," "When the Sun Comes Out," "Better Days," "Not So Simply Broadway" and "Christmas! Christmas! Christmas!"