Many were quick to notice Michelle Obama's absence on Inauguration Day, but the former first lady had a message to share on social media as questions over why didn't attend swirl.

As Barack, 63, Bill, 78, and Hillary, 77, entered the U.S. Capitol rotunda in Washington, D.C., on Monday for the 78-year-old’s historic swearing-in ceremony, people at the Capitol One Arena could be heard loudly booing.

Former first lady Michelle Obama will not attend the inauguration of President-elect Trump on Monday, the second time in two weeks that she will be absent from a significant event.

Bill Clinton will attend Trump’s swearing-in ... Bush said he and former first lady Laura Bush are also attending. Michelle Obama was the only spouse absent at last week’s funeral service ...

Michelle Obama was the only spouse absent from the service last week at Washington National Cathedral, where her husband and Trump were seated next to each other and chatted and laughed like old friends despite the history of political animosity between the Democratic former president and the returning Republican.

The planned absence Monday follows another notable absence last week at the state funeral of former president Jimmy Carter.

A spokesperson for Pelosi, who attended Trump’s 2017 inauguration, did not provide an explanation for the move.

Bill Clinton will attend the swearing-in ceremony ... Bush said he and former first lady Laura Bush are attending. Michelle Obama was the only spouse absent from the service last week at ...

Forever FLOTUS Michelle Obama’s absence on Inauguration Day earlier this week sparked widespread conversation on social media. She was the only living former first lady […] Michelle Obama Flooded with

How Donald Trump's presidential inauguration unfolded as he was sworn in as the 47th President to succeed Joe Biden.

Michelle Obama shared a poignant message during the build-up to President Donald Trump ’s inauguration as the former first lady decided to stay away from the festivities.