On the first Friday night of every month, Old Miami brings Blue Collar Gentlemen, an all-access pass to a vast amount of performances, freestyles, cyphers, battles and just random shit-talking by Detroit’s underground hip-hop elite. The night can showcase the grimy or the polished, the unproven or the spoken for, depending on the month. But one thing is for sure; Blue Collar Gentlemen is one of Detroit’s best proving grounds for those who want respect in the gritty music scene.