Damn, high fructose corn syrup has never looked so good!

Fergie shot her commercial for Dr. Pepper in nothing but a sexy black lace negligee and sky high heels. Now that's how you sell soda!

She looks at the camera and seductively says: "Now that's smooth." Then manages to tie a knot in a cherry stem with her tongue. She's clearly talented with her tongue. Josh Duhamel is a lucky guy!

Check out the racy commercial below...