If you feel that Leighton Meester = Blair Waldorf in perpetuity, think again. These images from the former’s performance at TAO in Vegas last week reveal the gorgeous lady’s other side, one thats so much more chilled out than the Gossip Girls persona. Wonder what Blair would say to her altar ego’s writhing onstage in skinny jeans and dishevelled hair. We just say that lady, you rock the style change stakes!!