Super Bowl 2015 ads: Chelsea Handler and Sarah Silverman phone it in

Carl's Jr. is famous for its racy ads starring Kate Upton, Paris Hilton and other scantily clad models like Charlotte McKinney. Haven't heard of her? Well, you have now. She strides naked through this Super Bowl spot, or at least she seems to. What does this have to do with hamburgers? It's saucy.