In two weeks time Barry and Kara are set to join forces for The Flash and Supergirl musical crossover in which they’ll battle the DC Comics villain Music Meister, portrayed by Darren Criss – a Glee alum who appeared on Fox’s musical dramedy alongside both Gustin and Benoist.
Although The CW debuted the first promo for the musical crossover last night, it didn’t include a look at Music Meister.
Now, the first image from the team-up episode features Music Meister and another Arrowverse character set to appear.
The Arrow and The Flash crossover in late 2015 worked to set up Legends of Tomorrow, then last year’s mega-crossover introduced Kara Danvers (Melissa Benoist) to the majority of the Earth-1 heroes after Supergirl moved to The CW from CBS following its first season.