Seriously? OMG! WTF?

Pop superstar Michael Jackson used to call his younger sister Janet "Fat Butt" when they were growing up, leaving her self-conscious of her appearance for years.Janet admits Michael’s taunts were probably the result of his own body "issues".She says: "I was made to feel like I was a fat kid by Michael. It really affected me, even as an adult."

IOL 

Wonder what he would’ve called J-Lo growing up?