Trapped together by Music Meister in an alternate reality that resembles a 1940s Hollywood musical, The Flash and Supergirl must sing and dance to free themselves.
In this clip from Tuesday's musical crossover, we see Barry and Kara coming up with a song on the fly. The song itself, which is titled "Super Friends," was written by Rachel Bloom, the Golden Globe-winning creator and star of The CW's Crazy Ex-Girlfriend.
Within the quirky the lyrics, the powerless duo sing about the power of friendship and how Barry isn't supposed to go back in time anymore and change events.
DARREN CRISS (“GLEE”) GUEST STARS AS THE MUSIC MEISTER IN THE FLASH AND SUPERGIRL MUSICAL CROSSOVER – 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 (guest star Darren Criss). 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.
Dermott Downs directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Aaron Helbing & Todd Helbing.
Based on the characters from DC, The Flash is from by Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti (Arrow, Supergirl), Andrew Kreisberg (Arrow, The Flash), Sarah Schechter (Arrow, DC’s Legends of Tomorrow) and Aaron and Todd Helbing.
"Duet" episode of The Flash will air Tuesday, March 21 at 8 p.m. ET/PT.