The Knowles sister leads the anti-Trump party.

Solange will perform at the Peace Ball in Washington D.C. on January 19, an event organised in opposition to the inaugural ball for Donald Trump being held in the city that night.

The Seat at the Table singer-songwriter will join jazz singer Esperanza Spalding at the National Museum of African American History and Culture for a nonpartisan gathering of artists and activists, set to include Angela Davis, writers Alice Walker and Naomi Klein, ‘Vagina Monologues’ playwright Eve Ensler and politically active actors Danny Glover and Ashley Judd.

Organizer Andy Shallal told the Washington Post: “It’s a celebration of accomplishment — over the last four years, there’s been progress on marriage equality, criminal justice reform, and health care. We don’t always take the time to stand back and look at this great stuff and celebrate.”

Meanwhile, Trump’s swearing-in is set to feature the Mormon Tabernacle Choir and country acts including the Randy Rogers Band.

Solange’s sister Beyonce performed ‘At Last’ at Barack Obama’s inauguration ball in 2009 and sang the national anthem at his ball in 2013. [via Fader]

Go behind the scenes of Solange’s A Seat at the Table in her short documentary, Beginning Stages.