VIDEO : Bruce Jenner Reveals He's Transitioning: Lady Gaga, Andy Cohen and More Celebs Offer Words o

Bruce Jenner has revealed that he is transitioning into a woman and opened up for the first time about his journey tonight during a candid and intimate sit-down interview with Diane Sawyer. In the interview, Jenner said, "Yes, for all intents and purposes I am a woman. My brain is much more female than it is male.