Crazy in love: Beyonce and Jay-Z, the intensely private power couple

Jay Z's influence in his girlfriend's life was visible in her music. The Bootylicious diva, who before Jay was linked to the likes of Pharell Williams and Mos Def, went from putting out songs like Independent Woman and Survivor to Cater 2 U.

In it she sings about bringing her man his slippers and running his bath. But it's OK, she wasn't selling out her feminist side.

"I feel it's still very strong, because in order to be a strong woman, you have to have a strong man," she explained. "There's nothing wrong with women doing that for their man if their man deserves it and he does the same for you."