A select group of celebrities are chosen to throw out the first pitch at a Major League Baseball game. And not all of them maximize the experience—just ask 50 Cent. Almost no one, however, has had as much fun with the endeavor than rapper Wiz Khalifa—so he claims—did Monday evening. Khalifa, a military brat who grew up in Pittsburgh after moving around frequently as a child, threw out the first pitch ahead of the Pirates' series opener against the Guardians at PNC Park. The event was duly promoted across MLB's soc