Serious Klein performed in the Global Citizen Festival .
Beyoncé and Jay-Z headlined the festival , followed by performances from Cassper Nyovest , Chris Martin , Kacey Musgraves , Pharrell Williams , Eddie Vedder , Ed Sheeran , D'banj , Femi Kuti , Sho Madjozi , Tiwa Savage , Usher and Wizkid .
Global Citizen Festival