Over the years, the various shows in the CW’s Arrowverse have done a great job building out their own mythologies and establishing unique tones and themes. That said, it’s still always a blast when the producers and writers decide to pull everyone together for a crossover. While that’s mostly meant a multi-show event involving a giant threat, the shows have featured smaller team-up episodes over the years with one character coming to another’s series. So far, the most memorable of these moments was last season when The Flash and Supergirl joined forces as Barry wound up on Kara’s Earth. To up the ante this year, the creatives behind the Arrowverse decided to use a tried and true genre trope: the musical episode.

When the Music Meister shows up and puts Kara under his spell, it’ll be up to her friends and Team Flash to save the day. Of course, they’ll all be getting drawn into the drama, making for a star-studded episode packed with glitz, glamor, singing, and dancing. From what we’ve seen so far, it looks as if everyone but Barry and Kara will be under the spell and playing an alternate version of themselves. And Iris and Mon-El may just have the most awkward rewrite of them all.

Candice Patton spoke with TV Line about the upcoming episode and revealed that she’d be playing Millie, the daughter of a mob boss. Mon-El, meanwhile, will be Tommy, her lover.

“Barry and Kara envision this world where Iris’ character and Mon-El’s character are very, very deeply in love with each other. And that obviously throws them off, because those are their love interests”

The Flash Supergirl Dynamic Duet Poster Flash/Supergirl Crossover: Iris & Mon El Alternate Reality Roles Revealed

That’s right, in this mixed up world, Mon-El and Iris aren’t with Kara and Barry, but together. It sounds like their families aren’t too keen on the coupling either, setting up some classic Romeo & Juliet vibes. Given the chemistry between Grant Gustin and Melissa Benoist, many a shipper would love to see Barry and Kara end up together. Having them be the only two aware of what’s happening and putting their significant others together acts as a nice inversion of those desires.

While we wait for Tuesday’s episode, the CW has been bombarding us with marketing. Last week, we got a new poster for the crossover teasing Barry being puppeted by the Music Meister and just yesterday, we got a new one showing Barry and Kara dancing together. Despite Barry regularly traveling through time and space and Kara fighting – and protecting – aliens most weeks, ‘Duet’ still looks to be the oddest adventure either hero has gone on yet.

Supergirl continues with ‘Star-Crossed’ on Monday, March 20 at 8 p.m. EST, followed by The Flash on Tuesday, March 21 in the same time slot with ‘Duet’.

Source: TV Line

Next: Did The Flash Just Reveal Savitar’s True Identity?

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