THE SHOW “A Doll’s House, Part 2”

THE DEAL With the previously announced extension of “A Doll’s House, Part 2,” Lucas Hnath’s four-person sequel to Henrik Ibsen’s classic drama, three-quarters of the cast will be replaced starting July 25. Taking over for Tony winner Laurie Metcalf, Chris Cooper and Condola Rashad, respectively, are Tony winner Julie White, Stephen McKinley Henderson and Erin Wilhelmi. Tony winner Jayne Houdyshell will remain. The play is now scheduled to run through January.

THE SHOW “Hamilton”

THE DEAL Looking for a “Hamilton” singalong? Not only has an instrumental version (“The Hamilton Instrumentals”) of the musical’s extremely popular cast album been released, the show’s producers have officially sanctioned a worldwide, royalty-free program of “Hamilton” singalong events. Previously, “Hamilton” singalongs have been held in Los Angeles under the title “Hamiltunes LA.” To set up your very own “Hamilton” singalong, contact hamiltunes@adventureland.com

THE SHOW “The Great Comet of 1812”

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THE DEAL Okieriete “Oak” Onaodowan (the original Hercules Mulligan and James Madison in “Hamilton”) won’t start as the new Pierre in “Natasha, Pierre and the Great Comet of 1812” until Tuesday. Last week, the role was played by Dave Malloy, who wrote the show and played Pierre when it debuted Off-Broadway. Josh Groban gave his final performance as Pierre on July 2. Earlier, recording artist Ingrid Michaelson (whose best-known songs include “The Way I Am,” “Girls Chase Boys” and “Celebrate”) joined the cast as Natasha’s cousin Sonya.

THE SHOW “Bandstand”

THE DEAL Joey Pero, who originated the role of trumpet player Nick Radel when “Bandstand” premiered at New Jersey’s Paper Mill Playhouse, joined the Broadway cast last week, taking over as Nick from Alex Bender. Pero had to delay his start date in the Broadway production after he fractured his leg in a car accident, according to Playbill.com. Since opening to mixed reviews and receiving just two Tony nominations, “Bandstand” has been fighting to survive commercially, though it got a boost at the box office after its performance on the Tony Awards broadcast.