Grant Gustin shares set photos of the Flash and Supergirl from the set of Supergirl.

Set photos are beginning to pop up from the set of CBS' Supergirl where CW star Grant Gustin is guest appearing as The Flash. Funny enough it is Gustin himself who is sharing the images as he is just too excited to keep the experience to himself. Gustin will be guest starring on Supergirl as Flash in an episode titled "Worlds Finest" that will air on March 28, 2016. Details on the episode are not yet known but if you watched last night's episode of The Flash were were given a hint that Supergirl could be located on a different Earth that Barry, aka the Flash, will be traveling to.

The first shared photo is of Grant Gustin and Supergirl herself, Melissa Benoist. The next two photos show off the director chairs on set with Grant Gustin looking absolutely excited to be there. I cannot wait to see what they have in store for fans with this crossover episode.

Those two emblems look pretty good together... @melissabenoist

A photo posted by Grant Gustin (@grantgust) on Feb 10, 2016 at 2:07pm PST

Jusssst gonna document the whole experience. Not excited at all. #Supergirl

A photo posted by Grant Gustin (@grantgust) on Feb 10, 2016 at 3:53pm PST

Hey Flash producers... I've already got a fancier chair on Supergirl than I've got on Flash. Just saying...

A photo posted by Grant Gustin (@grantgust) on Feb 10, 2016 at 3:15pm PST

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Source: Instagram - Grant Gustin