Singer Lady gaga has blasted rumours that she's hermaphrodite as" ridiculous".

Her real name is Stefani Germanotta was responding to internet speculation about a controvesial concert video.She also said in a recent web blog",i have both male and female genitalia,but i consider myself female.But gaga,23 told oz's matt and jo show;i ve made fun of it before,but to talk of it is ridiculous