>> i said who is that? what the hell happened? what happened in three months that took her from this person who seemed to really have it all together to this person who looked very dishevelled and just kind of not there? >> in a sad reality, houston hadn't been herself in years, at least not the one fans had come to love at the height of her super stardom. her struggles with addiction, the loss of her once incomparable voice, the pressures of fame had all but destroyed houston's once magnificent facade. and by saturday, february 11th, any hope of a comeback would be over. hours away from attending clive davis' annual pre-grammy celebration, whitney houston was in her fourth floor suite here at the beverly hilton when a music executive staying on the