Former President Barack Obama arrived at the U.S. Capitol on Monday for President-elect Trump’s inauguration ceremony without former First Lady Michelle Obama.

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,

A source familiar with the Obamas’ circle told Page Six last week that Michelle would not be attending Monday’s ceremony because she is “no phony.”