It's not clear until 28 seconds into a new 42-second commercial that it's an ad for the fast-food company’s new all-natural burger. The spot focuses on a buxom woman eating a hamburger and drawing stares -- and people are already talking, but not so much about the grass-fed beef. One person tweeted, "Just saw a preview of Carl's Jr. commercial for Super Bowl. Now I need a cigarette." Another Twitter user posted, "Setting feminism back four decades." Carl's Jr. regularly banks on the "sex sells" philosophy for its edgy multi-million-dollar Super Bowl campaigns.