Who knew Diddy was a Steelers fan? Does anyone know why? He's not from Pittsburgh, so we can't figure out why he would be a Steelers fan. But this was no casual fandom that he had on display at his Good Life party Saturday night... nope, Diddy showed up to the red carpet with a fly outfit and a regular old yellow Terrible Towel in his back pocket. If you don't believe me, here's the video we caught.