Republican Garth Brooks sang at Biden's inauguration. The internet reacted with memes and history lessons.

• Joe Biden was inaugurated as the 46th President of the United States in Washington DC on Wednesday afternoon.
• The new president's inauguration was filled with musical performances from Lady Gaga, Jennifer Lopez, and Garth Brooks.
• As the performances were taking place, social media was quick to joke about the musical guests, including Brooks.

Joe Biden and Kamala Harris were sworn in as the 46th President and Vice President of the United States of America on Wednesday. The new administration called on entertainers like Lady Gaga to sing the "National Anthem," Jennifer Lopez to sing "This Land is Your Land" and "America, The Beautiful," and finally, Garth Brooks was present to sing "Amazing Grace."

Once Brooks took to the stage, and even before he began to sing, Brooks was met with memes and reactions on social media.

People brought up Brooks' history as a vocal advocate for the LGBTQ+ community since the early 90s.

It was announced on Monday that Garth would be performing at president Biden's inauguration. Once the announcement was made, his conservative fanbase called for a boycott against Brooks.

—Brigitte Gabriel (@ACTBrigitte) January 19, 2021

Read more: Jennifer Lopez made a statement by wearing head-to-toe white during her inauguration performance

One person tweeted, "Just lost all respect for @garthbrooks this is his Dixie Chick's moment," nodding to the moment when one of the Dixie Chicks singers, Natalie Maines, criticized George W. Bush, leading to their blacklisting from the country music community.

—jasonbray (@jasonbray17) January 19, 2021

Another person wrote in a tweet, "It is a statement of submission. 'I accept your fraud and to hell with the people who made me rich because I already got mine,'" suggesting that Brooks does not care for what his conservative fans believe.

—Nick Searcy, INTERNATIONAL FILM & TELEVISION STAR (@yesnicksearcy) January 19, 2021

Many Twitter users came to his defense for performing at the inauguration, noting that the message in his music have often been about unification. In 1992, at the height of the AIDS epidemic, Garth Brooks released a song called "We Shall Be Free," whose lyrics proclaim that anyone is free to love who they choose. Brooks also spoke to a now-defunct print magazine called George and vocalized his support for gay rights. He told the magazine, which released its final issue in 2001, "But if you're in love, you've got to follow your heart and trust that God will explain to us why we sometimes fall in love with people of the same sex."

Although Brooks is a Republican, he's always been staunch on his message of unity and 'reaching across' the aisle.

Brooks spoke to Esquire about accepting the invitation to perform and said, "I might be the only Republican at this place. But it's reaching across, loving one another because that's what's going to get us through probably the most divided times that we have. I want the divided times to be behind us."

Read more: Garth Brooks wore a Barry Sanders Lions jersey to a Detroit concert and Trump fans thought he was supporting Bernie Sanders

After he performed, he went around and shook hands with and hugged the former presidents, from both parties, who were in attendance: former Vice President Mike Pence, current Vice President Kamala Harris, former President Barack Obama, former President Bill Clinton, and former Presidential nominee Hillary Clinton. He almost forgot to embrace former President George W. Bush and his wife, Laura Bush.

—C. (@RulesForCaro) January 20, 2021

People didn't hold back from making jokes about his entrance, as well as his attire.

The country singer donned a cowboy hat, boots, jeans, and a black button-up shirt, while almost everyone else in attendance was dressed in head-to-toe designer pieces, with subtle historical nods, from Vice President Harris' choice of color to Jennifer Lopez's head-to-toe white.

Lopez and Gaga made headlines for their performances. Lady Gaga started out the performances donning a Schiaparelli gown paired with a large golden dove brooch. Jennifer Lopez took the stage afterwards and threw in a not-so-subtle nod to her song by belting out, "Let's get loud!"

Twitter did not hold back when it came to making fun of Brooks and his interactions with the former presidents.

—Josh Reavis (@joshreavis) January 20, 2021

—TLER (@typhillips) January 20, 2021

—randy (@randypaint) January 20, 2021

—Gordon Bombay (@stanleyipkiss88) January 20, 2021

—Michael Hobbes (@RottenInDenmark) January 20, 2021