David Cameron is apparently a big believer in "pics or it didn't happen."

The UK Prime Minister tweeted a photo on the phone with President Barack Obama on Wednesday, noting the two had been speaking about the crisis in Ukraine and both condemned Russia's actions.

I've been speaking to @BarackObama about the situation in Ukraine. We are united in condemnation of Russia's actions. pic.twitter.com/7Rk2k8iOIK — David Cameron (@David_Cameron) March 5, 2014

People began mocking the original tweet and Cameron's serious expression, including comedian Rob Delaney, who couldn't pass up the opportunity to lampoon the prime minister. Delaney was joined by Sir Patrick Stewart and a slew of others who tweeted photos of themselves picking up their phones (or other objects) to make calls, presumably joining Cameron and Obama.