Lady Gaga’s famous eccentricity took a less-than-festive turn last night when she tore the head off a stuffed Santa Claus at her O2 show.Halfway through her set, the singer, 24, made it plain that she loathes Christmas. She seized the Santa doll and told the audience: “I hate the holidays. I’m alone and miserable you f**king stuffed little toy”, This is London informs. Dressed...