A momentous day in the United Kingdom where Prime Minister David Cameron announced he will step down on Wednesday.
But he somewhat spoiled the gravity of his announcement by humming on his way back into 10 Downing Street – the Prime Minister's residence – while still mic'd up for broadcasters.
As a result, the last thing the British public heard after his resignation was "Do doooooo do dooo ... right," as he entered the residence.
You can hear him hum from 1:00 in the above video, courtesy of Channel 4 News.
Some outlets – including The Independent – suggest he was singing the end of the theme song to "The West Wing."
Cameron announced he would resign from a post he has occupied since 2010 following the U.K.'s decision to exit the European Union – known as the "Brexit." – and maybe his levity is knowing he won't have to be in charge of the messy business of untangling the country from Europe.
He had planned to stay on until October to allow his Conservative Party to select a new leader, but the surprise withdrawal of Angela Leadsom on Monday, one of only two remaining candidates, prompted him to resign earlier than expected.
On Wednesday, Theresa May will become Britain's new Prime Minister, and has vowed to push ahead with Brexit, after the British public voted 52-48 to leave the E.U, the BBC reports.
Needless to say Cameron's mic gaffe prompted plenty of response on social media: