Jessica Biel, Amanda Seyfried Start “Jimmy K Diet”

After Jimmy Kimmel convinced Hollywood's hottest starlets to join his Hottie Body Hump Club in February, the 43-year-old late night host has devised a new way to get slim: the Hottie Body Jim-Miracle Diet.

Kimmel has already gained an impressive celebrity following, including the recently single Jessica Biel, 29. "Thanks to Jimmy K, I'm not a big, fat f***ing whale," she says.

Under his new diet program, the late night host promises to cut down calorie consumption by 80 percent.

"What about those pepperoni pizza slices topped with hot fudge and onion Bugles?" asks Amanda Seyfried, 25. No problem, Kimmel says, who then devours four-fifths of her meal. "Wow, it's that simple!" Seyfried marvels.

Other celeb devotees include Heidi Klum, 37, Zoe Saldana, 32, Scarlett Johansson, 26, Emily Blunt, 28, Kerry Washington, 34, Rebecca Romijn, 38, Erin Andrews, 32, Anna Faris, 34, and Marisa Miller, 32.

"Jimmy, I'm sold," Kristen Bell, 30, says. "How can I sign up for the Jimmy K Club?"

"It's so simple," he tells the Scream 4 star. "You just pick the plan you want to lose the weight you want."

Watch the faux infomercial (above)!

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