When is comes to fitness, few are better role models than the Williams sisters, Venus and Serena. The tennis champs embody dedication, perseverance and physical fitness. So how backwards is it that they're now lending their faces to an advertising campaign for junk food? Yes, you heard right. The Williams sisters are now the face of Oreos, and not just plain old regular Oreos -- they're promoting Double Stuff Oreos.

Granted, the campaign seems to be promoting fitness, but eating Oreos isn't exactly going to help you get in peak shape!

Have a look at the video ad and let us know what you think.

(Via Fitsugar)