Whoa whoa, hold up! Give us a second to stop screaming.

Okay, now we’re good.

In case you haven’t heard (and we’re guessing that it could be because you’re not already following Grant Gustin on Instagram), The CW’s superhero series “The Flash” is paying CBS’ “Supergirl” a visit via a crossover episode. Grant Gustin aka The Flash himself made the official announcement when he shared the cover page from the episode’s script on his Instagram:

Really really. Flash is about to meet Supergirl. @melissabenoist

A photo posted by Grant Gustin (@grantgust) on

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Yes, yes it’s true.

Fans have long suspected that there would be a possibility of a “The Flash” and “Supergirl” crossover happening even before “Supergirl” premiered last October. They kinda took the hint when the superheroes appeared on a Variety cover together.

“Variety” executive editor Debra Birnbaum shared the cover on her Twitter sometime back in May 2015:

https://twitter.com/debrabirnbaum/status/600342088643977216/photo/1

We don’t know what the plot details for “Worlds Finest” are, but “The Flash” and “Supergirl” executive producers Greg Berlanti and Andrew Kreisberg are beyond excited. Us too!

Upon the announcement, Greg and Andrew said in a joint statement, “We are so incredibly excited to announce something that we have dreamed of happening since we started making ‘Supergirl’ – The Flash and Supergirl are teaming up! We want to thank Grant Gustin for making the time to come visit (on top of his already immense workload) and all of the folks at CBS, The CW, Warner Bros. and DC for working this out.”

“And finally thanks to the fans and journalists who have kept asking for this to happen. It is our pleasure and hope to create an episode worthy of everyone’s enthusiasm and support,” they added.

Grant Gustin also shared a super adorable behind-the-scenes picture of both The Flash and Supergirl, which we have absolutely fallen head over heels in love with:

Secret is out. @melissabenoist and I are gonna get to have some fun on Supergirl together..

A photo posted by Grant Gustin (@grantgust) on

Aww, too cute! We’ll just leave this here, thank you very much 🙂

“Worlds Finest”, which will be the 18th installment of “Supergirl’s” freshman season, was penned by Kreisberg and Michael Grassi, from a story by Berlanti. It is expected to air on 28th March at 8pm on CBS.

Source: Variety, Grant Gustin’s Instagram, Comic Book Resources / Featured image from Grant Gustin’s Instagram.