The delay is the result of a minor muscle injury, which forced the performer to miss three days of rehearsal.

In a statement producer Barry Weissler said, "We are so thrilled with the incredible dedication, focus and determination that Christie has exhibited throughout this rehearsal period.  Right now, it's almost as if she is living, eating, sleeping and breathing Chicago!  While it's unfortunate that we must delay her start-date to make up for a few missed rehearsals, I'm happy to report that she's now rested, feeling great and ready to jump back into it.  And I'm excited that our audience on Friday, April 8 will be the first of many to see the stellar performance that she's going to deliver."

Brinkley will play an 11-week engagement as Roxie Hart. She will be joined onstage by Amra-Faye Wright as Velma Kelly, Brent Barrett as Billy Flynn, Raymond Bokhour as Amos Hart and Roz Ryan as Matron "Mama" Morton.

Christie Brinkley made her acting debut in 1983 opposite Chevy Chase in the feature film “National Lampoon’s Vacation." She also appeared on NBC’s “Mad About You” and hosted Lifetime Television’s “InStyle Celebrity Weddings,” which became the highest-rated special in Lifetime’s history.

The revival of Chicago began life as one of the three annual Encores! presentations offered by City Center. The musical opened on Broadway at the Richard Rodgers Theatre in Nov. 1996 where it remained through Feb. 1997. The musical transferred to the Shubert Theatre on Feb. 11, 1997, and played that house through Jan. 26, 2003. The revival reopened at the Ambassador Theatre, its current home, on Jan. 29, 2003. Chicago won the Tony Award for Best Revival of a Musical in 1997 as well as awards for actors Bebe Neuwirth and James Naughton, director Walter Bobbie, lighting designer Ken Billington and choreographer Ann Reinking. The original production was directed and choreographed by the late Bob Fosse.

The Ambassador Theatre is located at 219 West 49th Street.

Visit www.ChicagoTheMusical.com for more information.