Matinees of Movin' Out, the new musical collaboration between pop legend Billy Joel and choreographer Twyla Tharp, will feature different leads and a different singer than will the evening performances.

Night shows of the dance-heavy piece will star Elizabeth Parkinson and John Selya as Brenda and Eddie, Keith Roberts as Tony, Ashley Tuttle as Judy and Michael Cavanaugh as the vocalist belting out Joel's songbook.

On Wednesday and Saturday matinees, Brenda and Eddie will be played by Holly Cruikshank and William Marrié, while David Gomez will be Tony, Dana Stackpole is Judy and Wade Preston is on vocals.

At all performances, Scott Wise will play Sergeant O'Leary and the Drill Sergeant, and Benjamin G. Bowman will portray James.

The shifting line-up, which is detailed in the show's program, was no doubt devised to afford the lead performers a break from the physical workout provided by Twyla Tharp's choreography. During evening shows, Cruikshank and Gomez are part of the ensemble. Marrié and Stackpole are swings.

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Movin' Out moved out of Chicago's Shubert Theatre Sept. 1, after a summer-long stay that began June 25. The show will open at the Richard Rodgers in New York on Oct. 24, after previews from Sept. 30.