'American Horror Story' goes Gaga

Pop singer Lady Gaga, model Naomi Campbell and actresses Kathy Bates and Chloe Sevigny helped launched the upcoming fifth instalment of FX's television series "American Horror Story: Hotel" at the weekend.     Lady Gaga, named woman of the year by music magazine Billboard last week, turns her hand to acting in the popular horror show.     "I don't know if we know why we're drawn to certain things. We just are," she said on the series' red carpet premiere on Saturday