Garth Brooks provided sombre moment earlier

With the exception of Ronald Reagan, country star Garth Brooks has played for every US president since Jimmy Carter.

Today, he added Joseph Biden to that list, Reports BBC.

His emotional, a-capella rendition of Amazing Grace earlier offered a moment of sombre reflection after Biden's inaugural speech.

The musician, a staunch Republican, had joked before the ceremony that he "might be the only Republican at this place... But it’s about reaching across and loving one another."

He provided a moment of unity at the end of his performance, asking everyone at the Capitol, but also at home and at work, to join him for the final verse.