Carrie Underwood went viral for her a cappella rendition of 'America the Beautiful' at Donald Trump's inauguration on January 20.

Tellingly, the 41-year-old country singer took to her Instagram Story on Thursday and opted to not mention the performance at all in her first social media activity since the appearance.

Donald Trump was the first American president since the 19th century to win a second term after losing the White House, but his historic second inauguration didn't occur without a few mishaps.