The Flash/Supergirl crossover has been confirmed 

There’s been talks about a possible crossover between The Flash and Supergirl ever since Supergirl was announced. Well, now it’s been confirmed that the crossover between the two shows is actually going to happen.

American network, CW announced today that The Flash star Grant Gustin will guest star in an episode of Supergirl and that episode is set to air in the US on March 28th.

As of yet, plot details are very thin on the ground but I suspect this will involve Barry travelling to an alternate Earth.

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

A photo posted by Grant Gustin (@grantgust) on

Executive producers Greg Berlanti and Andrew Kreisberg had this to say:

“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.”