Columbia, SC (WLTX) - Democratic presidential candidates Hillary Clinton, Bernie Sanders, and Martin O'Malley will all be speaking at Monday's King Day at the Dome event in Columbia.

Representatives from all three campaigns confirmed Wednesday that the three contenders will address the audience. It's similar to what happened in 2008, when Hillary Clinton, John Edwards, and then candidate Barack Obama all spoke at the event. 

King Day, which is organized by the South Carolina NAACP, began in 2000, and has been held each year on the Dr. Martin Luther King Jr. holiday. This year's theme is statewide education equality. 

The event kicks off with a prayer service at Zion Baptist Church in Columbia, and then moves on to a rally on the front steps of the South Carolina State House at 10:15 a.m., where the candidates will be among the speakers.