This weekend, popular South African rapper Costa Titch collapsed and died on stage at a festival in Johannesburg. The 28-year-old, who was playing at the Ultra Music Festival and had recently signed with Akon’s record company, died of an undetermined cause. “Death has tragically knocked on our door, robbing us of our dear son, brother, and grandson Constantinos Tsobanoglou, whom South Africa had come to like and idolize as Costa Titch,” his family stated in an Instagram post.