The dance in Broadway's Chicago isn't all on stage: The casting dance continues, with stars Ruthie Henshall, Sandy Duncan, Bebe Neuwirth and Ute Lemper spinning 'round in April and May.

Here's the latest:

* Ute Lemper has left the Las Vegas staging as Velma and is returning to Broadway April 6. Stephanie Pope now moves to Vegas.

* Tony Award-winner Bebe Neuwirth's five-week return to the Broadway production as Velma ends April 4.

* Ruthie Henshall, Adrian Zmed and Sandy Duncan begin performances with the national tour, as Velma, Billy and Roxie, respectively, April 22-May 16 at Boston's Shubert Theatre and the women are expected to move onto Broadway May 25. She was flying on Broadway 20 years ago as Peter Pan, but come May 25 Sandy Duncan comes down to earth and into the darker world of John Kander, Fred Ebb and Bob Fosse's Chicago, playing murderess Roxie Hart in the musical revival. She replaces Karen Ziemba.

British Henshall was a smash in London as the revival's Roxie, opposite German chanteuse Lemper. She made her American theatre debut March 25-29 in Ziegfeld Follies of 1936, a concert revival by "Encores!" at City Center.

Duncan and Henshall's Broadway co-stars will be Brent Barrett, Roz Ryan and P.J. Benjamin.

Duncan is a three-time Tony Award nominee, for Canterbury Tales, The Boy Friend and Peter Pan. She appeared in the national and international tours of My One and Only with longtime friend Tommy Tune, and was set last year to star with Tune in a 1999 staging of Irving Berlin's Easter Parade, but that project is still in slow development.

She and Tune sang and danced in a vaudeville-style revue in Seattle in 1998.

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Chicago, directed Walter Bobbie and choreographed by Ann Reinking "in the style of" Fosse, opened on Broadway Nov. 14, 1996 and won six 1997 Tony Awards, including Best Musical Revival. For Chicago ticket information, call (212) 239-6200.

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The official Chicago website is www.chicagothemusical.com.