MILLION DOLLAR QUARTET It’s got all the structural weaknesses of the jukebox musical genre, and the performers playing Elvis Presley and Jerry Lee Lewis aren’t nearly as electrifying as their real-life counterparts were. But flaws and all, this show manages to deliver on one of the promises that’s always been at the heart of rock ’n’ roll: the simple pleasures of a good time. Through Oct. 20. Broadway in Boston. At Citi Emerson Colonial Theatre. 866-348-9738, www.broadwayinboston.com
BARITONES UNBOUND Move over, tenors — in this show subtitled “Celebrating the UnCommon Voice of the Common Man,” Marc Kudisch, Jeff Mattsey, and Ben Davis trace the history of the baritone voice, from plainchant, opera, and operetta to Broadway and popular music. The trio — all outstanding singers — are educational as well as entertaining, and in the second act, which takes place in a baritone “man cave,” they ham it up while reminding us that Bing Crosby, Frank Sinatra, and Elvis Presley were baritones. One of many highlights: the guitar-slinging Kudisch’s Elvis impression on “It’s Now or Never.” Through Oct. 20. Paramount Center Mainstage, Boston. 617-824-8400, www.artsemerson.org
BURNING In Ginger Lazarus’s commanding new play, a Cyrano-style lesbian romance leads to a probing look at the risks that enlisted women face. Directed by Steven Bogart. Through Oct. 20. Boston Playwrights’ Theatre. 866-811-4111, www.bostonplaywrights.org
SANDY MACDONALDDon Aucoin can be reached at email@example.com.