Supergirl¬†and The Flash are teaming up for a two-part musical crossover. Our favorite superhero characters will be singing and dancing in an alternate reality courtesy of Glee alum Darren Criss, who’s playing the Music Meister.

Check out photos from these episodes below, which air on Monday, March 20 and Tuesday, March 21:

[WATCH] Flash and Supergirl Release the First Musical Crossover Trailer >>>

First up is Supergirl. In season 2 episode 16 (titled “Star-Crossed”), “A new villain (guest star Teri Hatcher) comes to National City, putting Supergirl on high alert. Meanwhile, Winn’s girlfriend, Lyra, gets Winn in trouble with the law. Maggie attempts to help Winn, but old loyalties get in the way. The Music Meister (Darren Criss) attacks Supergirl.”

The King and Queen of Daxam Arrive

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Lyra Gets Winn in Trouble with the Law — But How?

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The Music Meister Shows Up to Create Chaos

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Mon-El Springs into Action

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Supergirl is Attacked By the Music Meister

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Quiz: Which Supergirl Character Are You? >>>

Then in episode 17 of The Flash season 3 (titled “Duet”), “Barry and team are surprised when Mon-El and Hank Henshaw arrive on their Earth carrying a comatose Supergirl who was whammied by the Music Meister (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.”

Mon-El and Hank Henshaw Bring Kara to Team Flash

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The Music Meister Also Puts Barry into a Coma

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Barry and Kara Wake Up in a Musical

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Martin Stein and Joe West Belt Out Some Tunes

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The Music Meister Gets Winn to Sing and Play the Piano

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Are you excited for this musical crossover? Are you looking forward to seeing Darren Criss on the show? Let us know what you think in the comments section below.

Supergirl airs Mondays and The Flash airs Tuesdays at 8/7c on The CW. Want more news? Like our Facebook page.

(Images courtesy of The CW)