Machine Gun Kelly is the latest celeb to be interviewed by Martin Brundle -- and just like most of MOTS stop-and-chats go ... this one was equally awkward, if not more hilarious.
The rocker/rapper was out in Sao Paolo Sunday to take in all the race cars zipping by for the Brazil Grand Prix -- and per usual, Brundle -- the famous driver-turned-broadcaster -- was out there doing his thing for Sky Sports F1 ... walking the grid and looking for stars to talk to.
Eventually, he tracked down MGK and attempted to chat him up impromptu .