I do not believe the theory that Bruno Mars is Michael Jackson's son. I think that some people believe this theory because of Bruno Mars’ skin tone and the way he looks. Also since he sings well people believe that there is a connection between the two. The reason that I don’t believe that they’re related is because DNA testing can be done easily even if someone is deceased.
So I believe that this would’ve been done already in the public would have known about it. I think people want a connection between two people especially if they are famous. I also think rumors go around and people start believing them. However maybe one day people will find out for sure if there is a relationship between the two.