Jamie Oliver, Ryan Seacrest Jamie Oliver, Ryan Seacrest

Look out, junk-food junkies! Ryan Seacrest and British chef Jamie Oliver are joining forces to give one of America's fattest cities a healthy makeover.

ABC has ordered six hours of the Seacrest-produced, unscripted series, according to The Hollywood Reporter. The show is loosely inspired by Oliver's school-lunch project in the U.K., in which the chef has set out to improve kids' nutrition by banning certain junk foods. Seacrest had the idea after an overwhelming response to a school-lunches segment he did during his KISS-FM morning radio show.

"I couldn't do what I do in terms of my schedule if I didn't eat right and exercise right," said Seacrest. "As a kid I was chubby, and I'm a firm believer that the fuel we put into our body results in a healthy lifestyle. Jamie's going to come over here, roll up his sleeves and use the resources of each town to help condition living habits to make it a better and healthier place."

The untitled series, which will likely air next year, will not only try to fix the city's school system, but also workplaces and other venues. The target location has yet to been named, but is expected to be selected from an "America's Fattest Cities" list.