On March 21st we’re going to truly see if Barry Allen has quick feet. We will finally be able to gander with glee the highly anticipated Flash/Supergirl musical crossover episode!
Darren Criss (Glee, A Very Potter Musical) will take on the role of the Music Meister, a villain originally portrayed by Neil Patrick Harris in the Batman: Brave and The Bold animated series. As we no-so-subtlety eluded to earlier, fans of Glee will be elated with this very small cast reunion (Grant Gustin and Melissa Benoist were also characters on the show.) According to Entertainment Weekly, our heroes will be trapped in an alternate reality where life is exactly like a movie music (probably chock full of La La Land references as well.)
The crossover is set to begin toward the end of the March 20th episode of Supergirl and run through the majority of March 22st’s episode of The Flash on The CW.