Kid Rock was heard using a homophobic slur in a show at a Smithville, Tennessee bar this past weekend.According to a report from TMZ, the Cowboy singer was performing at FishLipz Bar & Grill when he lashed out at fans who were filming the show with their smartphones.In a clip published on the outlet, the singer, 50, had microphone in hand as he was heard telling the crowd, 'You f***ing f*****s with your iPhones out,' and singing, 'You can post this d*** right here,' while gesturing to his crotch.