Article continues below advertisementMachine Gun Kelly left jaws on the floor while talking about his tattoos.During a recent BBC Radio 1 interview, co-host Charlie Hedges asked the singer, "Are there any areas that haven't been tattooed yet? Because you've got a lot going on."Article continues below advertisementMachine Gun Kelly's Candid Tattoo ConfessionSource: @bbcradio1/instagramMachine Gun Kelly admitted his private area is one of the only body parts he hasn't tattooed."Uh...