Tuesday, March 21 from 8 to 9 PM ET/PT on The CW
Darren Criss (“Glee”) guest stars as the music meister in this “Flash” and Supergirl musical crossover event. Barry (Grant Gustin) and team are surprised when Mon-El (guest star Chris Wood) and Hank Henshaw (guest star David Harewood) arrive on their Earth carrying a comatose Supergirl (guest star Melissa Benoist) who was whammied by the Music Meister.
Unable to wake her up, they turn to Team Flash to save her. However, the Music Meister surprises The Flash and puts him in a similar coma, one that Team Flash can't cure. Kara and Barry wake up without their powers in an alternate reality where life is like a musical and the only way to escape is by following the script, complete with singing and dancing, to the end.
Award-winning songwriters Benj Pasek and Justin Paul have penned an original song entitled “Runnin’ Home to You” for this crossover musical episode. Grant Gustin will perform the song. The episode will also feature another original song penned by “Crazy Ex-girlfriend” star Rachel Bloom and Tom Root, entitled “Super Friend.”