Former Playboy bunny Holly Madison is the face of a weight loss pill and RadarOnline.com has a sneak peek at her sizzling new commercial.

Holly, 32, walks past a gaggle of paparazzi and enters a clothing store, walks up to a male sales clerk and takes her jeans off — showing off her super trim legs.

"I'd like to exchange these for a smaller size please," she says.

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"Again?" the clerk says, noting her rapid weight loss.