Week 2 of the X Factor proved that Tulisa can really pull a fabulous look out of the bag when it is called for. With the elegant and beautiful Nicole Scherzinger sitting on the same panel, Tulisa knows that the style bar has been raised – let’s face it, with her bone structure and catlike eyes, Nicole would look great in an earthen sack. But Tulisa is a girl who can always spring a style surprise (albeit not always a good one…) and last night was one of those nights. Tulisa chose a classy white draped dress with leather panels from New York designer Alexander Wang. There was just so…