When UK Prime Minister David Cameron posted on Twitter a photo of himself talking on the phone to President Barack Obama about the tense situation in Ukraine and looking super serious doing so, he inadvertently started a chain reaction of parody photos.
Comedian Rob Delaney jumped in:
— rob delaney (@robdelaney) March 5, 2014
Then Sir Patrick Stewart came on board:
... and hilarity ensued, when more Twitter users piled on with #Davecalls
Batman took the call:
Even the dog got in on the convo:
And it's now a game: