Barack Obama has congratulated his former Vice President on becoming the the 46th President of the United States.
Joe Biden has been officially sworn in to lead America for the next four years in a stunning but small ceremony in Washington D.C.
Mr Obama and his wife Michelle were among several former Presidents present at the inauguration, however Donald Trump snubbed the event and opted to fly to Florida.
On Twitter, the 44th wrote: "Congratulations to my friend, President @JoeBiden! This is your time."
They also shared a fist bump when they arrived at the west front of the United States Capitol building, which faces the National Mall with the iconic Washington Monument and Lincoln Memorial in view.
Viewers watching the inauguration couldn't help but be caught up in the revived bromance.
One person wrote: "It was the look on Joe Biden's face when he saw Obama that got me. What a beautiful bromance - plus also hope for the future."
Someone else added: "Love Biden and Obama's bromance. That fist bump," while another commented: "Biden and Obama's enthusiastic fist bump was just the bit of bromance we needed today. The true affection they have is heartwarming."
A fourth wrote: "Screw COVID for depriving us of a big hug between Joe Biden and Barack Obama. The bromance endures."
Reciting the presidential oath, Mr Biden said: "I do solemnly swear that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States."
He then went on to address the nation, assuring the country that 'democracy had prevailed' after a troubling few weeks and months.
Mr Biden said: "A new America has risen to the challenge today. We celebrate the triumph not of a candidate, but of a cause, the cause of democracy.
"The people, the will of the people has been heard and the will of the people has been heeded.
"We've learnt again that democracy is precious. Democracy is fragile. At this hour, our friends democracy has prevailed."
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