President Barack Obama has been sworn in for a second presidential term today during a private ceremony at the White House.
On Monday, the President's public Inauguration will take place in Washington.
Beyonce "lip-synched" the national anthem at President Obama's inauguration because she did not have time to rehearse with the band.
A day of grand political theatre lies ahead, but President Obama knows his history and will be steeling himself for a turbulent second term.
Presidential inaugurations are normally highly scripted events, but things don't always go according to plan.