ALBAWABA - South African rapper Costa Titch was performing on stage before he suddenly collapsed on stage and perished as his audience watched. The 27-year-old rapper, Costa Titch, whose real name was Constantinos Tsobanoglou, was performing his last song of the setlist and lost consciousness while performing at the Ultra Music Festival at the Nasrec Expo Centre in Johannesburg Saturday. In a video posted on Twitter, Titch is seen tripping ...