Christopher Macchio was asked to fill in last minute at a New Year’s Eve celebration held at Mar-a-Lago — a performance that caught the attention of rocker Rod Stewart.

President-elect Donald Trump selected opera tenor Christopher Macchio to perform the national anthem at Monday’s inauguration, at which Carrie Underwood will also perform “America the Beautiful.” Here’s a list of some singers at previous presidential inaugurations,

U.S. Code states that those who are not members of the armed forces should put their hands over their hearts during the national anthem

The president, 78, tapped Christopher Macchio to perform the national anthem. Described on his website as “America’s tenor,” Macchio, 46, has a long history as a concert singer and almost as long of a history of supporting Trump.

Macchio has performed for Trump before, including a campaign rally at Madison Square Garden in October and a New Year's Eve party at Trump's Mar-a-Lago resort.

Opera tenor Christopher Macchio will sing the national anthem at the President-elect Donald Trump’s inauguration before a much smaller crowd than he was expecting, a letdown with a silver lining. The ceremony Monday has been moved indoors because temperatures are set to plummet and make it the coldest Inauguration Day in 40 years.

President-elect Donald Trump has selected opera tenor Christopher Macchio to perform the national anthem at his second inauguration