Besides Carrie, opera singer Christopher Macchio performed “O America,” and the national anthem, during the inauguration. Country singer Lee Greenwood also performed “God Bless the U.S.A,” prior to Trump taking his oath of office.

Country star Carrie Underwood gave an impromptu a cappella performance of 'America the Beautiful' at Donald Trump's second inauguration on Monday after a glitch left her without backing music.

Trump has long struggled to get high-wattage celebrities to perform at his events. In 2017, the list of musicians who reportedly turned down performing at Trump’s first inauguration included Elton John, Garth Brooks, Celine Dion, Idina Menzel and KISS.