Country superstar Carrie Underwood performed “America the Beautiful” at the inauguration of President Donald Trump on Monday, but not the way she expected she’d sing it. Underwood had to improvise and sing acapella at the last moment when there was a technical problem with the band or music that was supposed to accompany her performance.

Donald Trump's inauguration, moved indoors due to cold weather, will feature well-known performers, influential billionaires, and foreign leaders. Expect a smaller crowd inside the Capitol Rotunda, with notable guests like Elon Musk and Mark Zuckerberg.