I wonder why Britney came to this. Maybe she’s a Quentin Tarantino superfan. Maybe she had questions for Margot Robbie about Tonya Harding. Maybe she’s bored; maybe, as the singer of ‘Toxic,” she simply wanted to be present for a movie about a situation that was toxic. Or maybe she just realized that July in Las Vegas is rough weather sledding no matter how big the heatwave is everywhere else. Regardless, I’m pleased to have her, and I wish one of the big Hollywood stylists would take her under their wing and — to mix pop singer references — spice up her life.