John Barrowman joins ‘Supergirl’ and ‘The Flash’ musical crossover

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New details have been released today about the The Flash and Supergirl‘s upcoming musical episodes.

Titled ‘Duet’, the crossover event will start with the Supergirl episode airing in the US on 20 March and will conclude in The Flash on 21 March, CBR reports.

The episodes will feature Grant Gustin, Jesse L. Martin, Carlos Valdes, Melissa Benoist, Jeremy Jordan, Victor Garber and John Barrowman, alongside characters from Arrow and Legends Of Tomorrow as well. David Harewood (Homeland) and Chris Wood (The Vampire Diaries) will also appear, but won’t be singing.

The Flash and Supergirl stars Grant Gustin and Melissa Benoist both previously appeared in Glee, while Barrowman launched his career in musical theatre and has released a number of hit albums.

The crossover’s main villain will be the Music Meister, based on the Music Master from the comics.

The CW president Mark Pedowitz told TVLine earlier this month: “We’re very excited about it. There’s great musical talent on both shows.”

Are you looking forward to the musical crossover? Let us know below…