VIDEO : Dave Matthews Puts on Concert for Charlottesville

(Reuters) - Pop stars Ariana Grande, Justin Timberlake and Pharrell Williams will join the Dave-Matthews/'> Dave Matthews Band in a free concert aimed at promoting unity in Charlottesville following clashes between white supremacists and anti-racist protesters last month. 24 ?Concert for Charlottesville? on its website on Wednesday, the Dave-Matthews/'> Dave Matthews Band said the show would be free for students, faculty and staff at the University of Virginia and for people in the Charlottesville area.