'The Flash' & 'Supergirl' Musical Soundtrack Is On iTunes, So 'Glee' Fans Rejoice

Are you still humming "Super Friend"? Then you need to head to iTunes immediately. The Flash & Supergirl musical soundtrack is now available for download, and it features the special episode's six big numbers, and a guitar version of "Runnin’ Home to You," boasting the musical prowess of The Flash himself, Grant Gustin. "Duet," the March 21 episode of The Flash, is destined to go down in TV history as one of the best musical episodes ever, and you know you are dying to listen to the songs all over again — especially if you're a Glee fan.

In addition to all the superhero goodness, the episode also acted as a mini Glee reunion. Both Gustin and Supergirl's Melissa Benoist appeared in Glee during the show's six-season run, and "The Duet" cleverly cast their fellow Glee alum Darren Criss as the villainous Music Meister. If you have been missing the McKinley High School's impromptu sing-alongs, then you need the soundtrack in your life whether you are already a fan of the DC shows or not.

The episode had serious musical star power behind it. Crazy Ex-Girlfriend's Rachel Bloom co-wrote the standout number "Super Friends," while La La Land's Benj Pasek and Justin Paul penned the gorgeous "Runnin' Home to You." Add in the fresh takes on classic songs like "Moon River," "Put a Little Love in Your Heart," and "More I Cannot Wish You," and it becomes clear the album shows the full range of the talented cast's abilities.

Gustin and Benoist weren't the only castmembers who got in on the singing and dancing fun. The soundtrack also features the vocal stylings of their accomplished musical co-stars John Barrowman, Victor Garber, and, of course, Criss. Each of the seven songs stands beautifully on its own thanks to the talented actors and musicians involved in the crossover episode.

If you don't have time to rewatch the standout episode immediately, then the soundtrack is the next best thing to seeing Barry and Kara tap dancing together. The sound is delightfully old-school, and should give Glee and La La Land fans a serious case of the feels. It truly is like listening to a lost classic musical.

Whether you are in it for the Glee throwback goodness or because you are a DC superfan, the album is well worth owning. If nothing else, you can bask in Barry serenading Iris with an original love song for all eternity now. That alone is totally worth $7.99.