Last month, when Gwyneth Paltrow unhumblebragged about her extensive knowledge of rap lyrics, including a complete knowledge of N.W.A.'s "Straight Outta Compton," amidst the jokes about this new factoid's utter perfectness in the glass-doored curio cabinet that are this completely un-self-aware Hollywood Princesses's own quotes about herself, at no point did anyone suggest that she actually PROVE IT. I'm pretty ...