The Georgia runoffs are just a month away, with the outcome determining the outcome of the election and which political party will have control of the Senate. That’s why Stacey Abrams’ Fair Fight is holding a star-studded Rock the Runoff virtual concert, with proceeds going towards the non-profit’s voter mobilization efforts.

Justin Timberlake, Michael Stipe, Ludacris and Jermaine Dupri, Monica, Earthgang, Indigo Girls and Audra McDonald have been added as performers for the event co-hosted by Abrams and Kerry Washington. They join previously announced performers John Legend, Common and Ben Gibbard of Death Cab for Cutie.

“We are excited to bring together a diverse set of world-renowned talent for Fair Fight’s Rock The Runoff Virtual Concert. As we approach the January 5 Senate runoffs in Georgia, we must meet voters and supporters where they are; and reiterate how critical these elections are to the future of our nation,” Abrams previously said in a statement to Billboard. “The issues that are vital to the survival of our communities are on the ballot in January. Georgia has proven its ability to turn out the multi-racial, multi-ethnic and multi-generational coalition needed to win, and we are poised to do it again on January 5.”

Rock the Runoff airs Thursday (Dec. 3) at 9 p.m. ET, with tickets available here.