The Flash Season 3 Episode 17 Sneak Peek.
The Flash 3x17 Musical Crossover with Supergirl Sneak Peek.
The Flash 3x17 Kara and Barry Team up in one week Musical Crossover Sneak Peek Behind the Scenes.
The Music Meister sends Supergirl and the Flash to a world where life is a musical and the only way to escape is to sing and dance.
Director: Dermott Downs
Writers: Greg Berlanti (developed by), Andrew Kreisberg (developed by) | »
Stars: Grant Gustin, Candice Patton, Danielle Panabaker, Melissa Benoist
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