If you catch “The Million Dollar Quartet” on Thursday, you’ll also catch Tucsonan Robert Shaw sittin’ in for the encore.

Shaw is intimately familiar with the musical — he played the roles of Elvis, Johnny Cash and even Sam Phillips in the 2009 Chicago production (Chicago is where the show originated.).

Shaw’s known in the Old Pueblo for his roles at The Gaslight Theatre roles, and his music-packed Elvis and Johnny Cash shows.

The performance is at 7:30 p.m. today at the Tucson Music Hall in the Tucson Convention Center. Tickets are $29-$69 at broadwayintucson.com the TCC Box Office, or at 1-800-745-3000.

Find a review of the play, which continues through Sunday, at azstarnet.com/entertainment/arts-and-theatre