Oh his music career is one in million that's for sure but there is one song that makes his fans and even those who are not would say who was this Billie Jean. From the pages of my memory I and do mean what I have found out is that Billie Jean was the woman he played on with the groupies his brothers found themselves in like they would hang around their Encino home and even at hotels they would be staying in. But this made MJ think about writing a song on how this one gal would claim she was having his baby and yet it was not true but in her mind it was. You know a lot of their fans would claim one of the Jackson brothers got them pregnant even MJ had this woman that would call herself Billie Jean and for years she claimed MJ was the father of their baby. She took her claims to court and every time it was dropped but she kept on harassing MJ. So with all this going on he put that song together and named it Billie Jean oh but she was name by him using the name but not for Billie Jean King the tennis player just saying. So I guess you could say that Billie Jean was a woman of thought put together with MJ's musical mind and gave it the top beat of funky grooves till this very day.