The "Black Panther" star was spotted turning up with his rumored GF, Ashlyn Castro, at the ritzy VIP Room nightclub in St. Tropez. It got real steamy in the club ... and it had nothing to do with Mike's cigar.
Check out the pics ... MBJ -- who, btw, is rocking a sweet Elvis tee -- and Ashlyn were all over each other ... grinding, sucking face and living it up. Just like you-know-who.
It's still true ... everybody wants to be like Mike.