How can I watch the US inauguration, and who's performing?
BBCInauguration day is under way – an occasion filled with pageantry that will culminate in Donald Trump returning to the White House as the 47th president of the United States.
Thousands of Trump supporters have gathered in Washington DC, braving the freezing weather which has prompted certain events to be moved inside.
Musical performances and formal balls are on the schedule – after Trump was formally sworn in.
The formal ceremony marks the end of one president's time in office and the start of the successor's administration – the handover from Joe Biden to Donald Trump.
What happens during the inauguration?
The key moment was when Trump and Vance were sworn in at about midday local time (17:00 GMT) in the Rotunda of the US Capitol building. At that time, Trump officially become the 47th president. He previously served as the 45th president between 2017 and 2021.
The inauguration proceedings traditionally take place outside the US Capitol building, with viewing areas extending down the National Mall. But freezing cold winds prompted Trump to request a change of venue.
ReutersTrump's day began with a service at St John's Church, Lafayette Square, a historic Washington DC church. That was followed by tea at the White House with Biden and his wife, First Lady Jill Biden.
After giving an inaugural address, Trump will head to the President's Room - near the Senate chamber - to sign key documents, and then attend a lunch hosted by the Joint Congressional Committee on Inaugural Ceremonies.
This is usually followed by a parade that proceeds from the Capitol building down Pennsylvania Avenue to the White House. However, this is essentially cancelled, due to the weather.
Later in the evening, Trump will appear at three inaugural balls throughout the city - the Commander-in-Chief Ball, the Liberty Inaugural Ball and the Starlight Ball. He is expected to speak at all three.
During his first day of power, Trump is expected to sign more than 200 executive actions. This would include executive orders, which are legally-binding, and other presidential directives like proclamations, which are usually not.
An executive order is a written order issued by the president to the federal government which does not require congressional approval.
How can I watch the inauguration?
Tickets for the event are highly coveted. Members of Congress have distributed some to their constituents for free.
Other attendees are watching proceedings on a livestream inside the nearby Capital One Arena, which can hold 20,000 people. Trump has said he will visit the crowd at the sports arena after his swearing-in.
The White House will livestream the event for those watching remotely. The BBC will cover it live on our TV news channel.
Viewers in the UK can also now see coverage on BBC One.
You can also watch a stream of the inauguration on our website and follow our live page, where we will bring you updates, analysis and key moments as they happen.
Listeners will be able to hear a radio special on the BBC World Service and, in the UK, on BBC Radio 4. Special episodes of Americast and The Coming Storm will be among the podcast offer.
Who will perform?
Country singer and former American Idol winner Carrie Underwood is due to perform America the Beautiful during the ceremony.
"I love our country and am honoured to have been asked to sing at the inauguration and to be a small part of this historic event," Underwood said in a statement.
Country singer Lee Greenwood - Trump's long-time friend and collaborator - will also perform at the inauguration ceremony, as will opera singer Christopher Macchio.
American disco group The Village People performed at Trump's victory rally on Sunday, and are expected again at one of the inaugural balls on Monday.
During the campaign, Trump frequently played the group's songs - YMCA and Macho Man - at his rallies.
"We know this won't make some of you happy to hear, however, we believe that music is to be performed without regard to politics," the band said in a post on its Facebook page.
"Our song YMCA is a global anthem that hopefully helps bring the country together after a tumultuous and divided campaign where our preferred candidate lost."
Other performers said to be performing at the evening balls include Kid Rock, Billy Ray Cyrus, Jason Aldean and Rascal Flatts. Singer Gavin DeGraw and rapper Nelly will also perform.
Who will attend the inauguration?
Getty ImagesMany US senators and House members are also in attendance, as well as guests of the incoming administration.
After Trump, Vance and their families, the next most important attendees are the outgoing president and vice-president. We have seen Biden and Vice-President Kamala Harris - who lost the November election to Trump - with their respective spouses Jill Biden and Doug Emhoff.
Former presidents and first ladies are often on the guest list, but former first lady Michelle Obama is skipping this year's inauguration.
Mrs Obama was noticeably absent from a recent memorial for former President Jimmy Carter, remaining instead in Hawaii. She has attended every inauguration since her husband's in 2009, including Trump's first swearing-in in 2017.
Mrs Obama's husband Barack is there, though, along with another former president, George W Bush, and his wife Laura Bush. Former House Speaker Nancy Pelosi, another Democrat, is not attending.
Amazon founder Jeff Bezos, Meta boss Mark Zuckerberg, Apple leader Tim Cook, and Google chief Sundar Pichai were seen taking seats at St John's Church as the day got under way.
TikTok CEO Shou Zi Chew will also reportedly attend. The app has been in the spotlight as it is now subject to a US law that tries to ban it for security reasons, though Trump has pledged to intervene.
China's Vice President Han Zheng will also be in attendance, along with Italian Prime Minister Giorgia Meloni and Argentina's President Javier Milei.
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