Yesterday, Tom Welling and Tyler Hoechlin's Clark Kents united in a behind-the-scenes photo from the Arrowverse's "Crisis on Infinite Earths" crossover. Now, we have yet another meeting of the Men of Steel, this time between Hoechlin and Brandon Routh's Supermen.

On Instagram, Routh posted a photo of him and Hoechlin each sporting their respective Superman costumes. Hoechlin, of course, is wearing the same one he's worn on Supergirl while Routh is donning the Kingdom Come version.

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"#DoubleVision—the new #Superman ability!" Routh wrote in the caption. "Grateful to share the #Arrowverse as #Superman for a short time with the charming & gracious @tylerhoechlin! I never really thought I’d get to meet #Superman in person... Gotta say, it’s all it’s cracked up to be!"

"Crisis on Infinite Earths" begins Sunday, Dec. 8 at 8 p.m. ET/PT on Supergirl, then continues in Batwoman on Monday, Dec. 9 at 8 p.m. ET/PT and in The Flash on Tuesday, Dec. 10 at 8 p.m. ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, Jan. 14 in Arrow at 8 p.m. ET/PT and in DC's Legends of Tomorrow at 9 p.m. ET/PT.

KEEP READING: Crisis on Infinite Earths: Arrowverse Crossover Has More Surprises Coming