Underwood realized there was an issue with the music starting and had to quickly improvise. “If you know the words, help me out here,” she said before singing the song a cappella. Former ...

a White House official appeared to prompt Underwood to sing without the music. Underwood then said to the crowd, “You know the words, help me out here,” before singing the tune a cappella.

On Monday, after President Donald Trump was sworn-in to office and finished his speech, Underwood sang “America the Beautiful” a cappella ... waiting for the music to start, appearing slightly ...