Carrie Underwood might not be Beyoncé or Garth Brooks in the celebrity superstar ecosystem. But the singer’s participation in President-elect Donald Trump’s inauguration is nevertheless a sign of the changing tides.

Celebrities are likely to attend or perform at a number of official balls associated with the inauguration, which include the Peage Ball, Black Tie and Boots Ball, GW Inaugural Ball, Palmetto Presidential Inaugural Ball, and the Veterans Inaugural Ball. There will also be unofficial balls and rallies.

Military bands and thousands of spectators mean event is always a spectacle and incoming president may also turn to celebrity supporters

Country music star Carrie Underwood performed “America the Beautiful” a cappella at Donald Trump's inauguration on Monday.

This is a collection of photos chosen by AP photo editors.

President-elect Donald Trump had one of the biggest names in country music performing at his swearing-in ceremony.