Jenny Craig has tapped Hollywood's new plus-sized poster girl, Kirstie Alley, as its new celeb spokeswoman. The upcoming Fat Actress star says she was approached by four other companies before settling on Jenny. "I wanted to go with the safest, most well-rounded, fun approach," Alley says. "And let's face it, Jenny Craig's food is hands-down the yummiest." And their checks the cashiest!