His set on Saturday was fired up with rugged energy, if not musical subtlety. He paid tribute to the late rapper XXX Tentacion, who was killed in Florida in June, took to the crowd to rap, and repeatedly thanked Philadelphia for having him. Before finishing with his breakout 2017 hit “Gummo,” he said, “This is so special to me, this is the first festival I ever got invited to play. I don’t know who it is that runs Made in America, but thanks to them.” Yo, Tekashi, I guess you missed it somehow, but the guy who runs Made in America is Jay-Z. His set on Saturday was fired up with rugged energy, if not musical subtlety. He paid tribute to the late rapper XXX Tentacion, who was killed in Florida in June, took to the crowd to rap, and repeatedly thanked Philadelphia for having him. Before finishing with his breakout 2017 hit “Gummo,” he said, “This is so special to me, this is the first festival I ever got invited to play. I don’t know who it is that runs Made in America, but thanks to them.” Yo, Tekashi, I guess you missed it somehow, but the guy who runs Made in America is Jay-Z.