Colin Donnell, John Barrowman, Jesse L. Martin, Carlos Valdes, Victor Garber, Arthur Darvill, Ciara Renee, and Jeremy Jordan have all starred in Broadway musicals.
It also is technically a bit of a crossover with Legends of Tomorrow, with Victor Garber returning to The Flash to participate.
It seemed like only a matter of time before a musical episode happened – and now the wait is almost over.
On the March 20th episode of Supergirl, ‘Star-Crossed’, the crossover will kick off, and then most of the story will be told in The Flash episode ‘Duet’.
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THE FLASH & SUPERGIRL: Musical Crossover Set Visit