The Music Meister comes to shake things up on the newest crossover event, this time it’s a musical!

The CW has officially released the synopsis for ‘The Flash’/ ‘Supergirl’ combo episode! This highly anticipated musical has been the talk of the CW world for weeks, and now we get to know why!

With the amount of musical talent on the show, it is not surprising a musical episode would come into play. Jesse L. Martin who plays Detective West, has a very musical background, including staring in the movie adaptation of ‘Rent’. Carlos Valdes (Cisco Ramone) is a singer known as Tha Los. We even get to hear some singing from Flash himself, Grant Gustin.

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.

According to my source, this time the event will take place in the Flash world more so than Supergirl. The first crossover event, it was in reverse. Team Flash will get to run the show, with the Supergirl team right next to them.

Finally, the musical event airs on Tuesday, March 21st at 8/7c in the normal time slot for ‘The Flash’.