In the second-season opener, mother of eight Kate Gosselin leaves her rigidly ruled home in Pennsylvania and swaps places with former Playboy Playmate Kendra Wilkinson, who lives a laid-back life in Los Angeles.

Coolio's independent girlfriend swaps places with Mark McGrath's wife, who receives child-care help from her parents and a nanny.

Gilbert Gottfried's wife, who's grown accustomed to her husband's frugal ways in their tiny New York City apartment, switches places with Alan Thicke's spouse, who often throws extravagant dinner parties at their spacious California ranch.

Bristol Palin and Melissa Rivers swap places. Bristol tries to inject some fun into the Rivers' strict regime, while Melissa strives to add structure to the unruly Palin household.

The girlfriend of retired wrestler Ric Flair leaves behind her lavish, fast-paced life in North Carolina and swaps places with the wife of former wrestler Rowdy Roddy Piper, who lives a quiet, somewhat secluded life in the mountains of Oregon.

Actress and singer Nia Peeples leaves her surfer husband and mobile California beach home and swaps places with 1980s pop star Tiffany, who lives a busy life in Nashville, where she and her husband each run separate businesses.

Lorenzo Lamas' wife leaves her two jobs and home in Beverly Hills and swaps places with Andy Dick's former love interest, who lives on the same property as Andy and his new girlfriend in Calabasas, Cal., and who chauffeurs Andy around to his appointments.

Former VJ "Downtown" Julie Brown leaves her relaxing, slow-paced lifestyle and swaps places with retired WNBA player Lisa Leslie, who has her family adhere to strict schedules for activities, dinner and bedtime.

In the Season 2 finale, the wife of Gerardo Mejia leaves behind her many chores at the home where her husband hosts a weekly Bible study, and swaps places with Sisqo's girlfriend, who color coordinates her outfits with Sisqo and abides by a strict diet.

In the third-season opener, Jermaine Jackson's wife leaves her opulent Hollywood Hills home to swap places with Daniel Baldwin's ex-girlfriend, who lives in a simple house in Calabasas, Cal.

Eric Roberts' wife leaves her pet-filled home in Los Angeles and switches places with Robin Leach's dear friend, who's used to a lavish lifestyle in Las Vegas.

New York City native Tichina Arnold leaves behind her busy days and relaxing nights and swaps places with Kelly Packard, who raises animals in the California countryside while adhering to a strict Mormon lifestyle.

Laila Ali leaves her Los Angeles home, which runs on a strict schedule, and swaps places with and Angie Stone, whose family has a laid-back lifestyle in Atlanta.

Angie Everhart swaps places with Gina Neely, and food becomes a big issue in both households because Angie's boyfriend runs a prepackaged food-delivery service, while Gina and her husband are cooking-show hosts who prepare elaborate meals.

Larry Birkhead's sister leaves her unstructured, fast-food-loving household in Kentucky and swaps places with Helio Castroneves' girlfriend, who runs an orderly, health-conscious home in Florida.

David Justice's wife leaves behind her housekeeper, groundskeeper and sprawling home in San Diego and swaps places with Dweezil Zappa's wife, who lives an eco-friendly, cell-phone-free lifestyle in Los Angeles.

Amanda Beard leaves her secluded cottage home and outdoor lifestyle near Seattle and swaps places with Heidi Pratt, who lives a more social life filled with shopping adventures and nightclub outings in Santa Barbara, Cal.

Penn Jillette's wife leaves her secluded, atheistic home in the Nevada desert and swaps places with Judy Gold's fiancée, who lives in a cramped New York City apartment, where her family observes Jewish religious traditions.

The personal assistants of Joe Piscopo and Barry Williams swap places.

Jenna von Oy leaves her modest home and quiet life in Nashville and swaps places with Jill Zarin, who has a lavish summer home—complete with a staff—in the Hamptons, where she frequently hosts big parties.

The wives of soap-opera stars Tyler Christopher and Ronn Moss swap places.

In the third-season finale, the wife of NFL player Plaxico Burress leaves her two jobs and busy domestic household in the New Jersey suburbs and swaps places with DJ Paul's fiancée, who keeps late hours with a party-filled lifestyle in Las Vegas.

Margaret Cho leaves behind her laid-back, no-rules lifestyle with her friends and swaps places with Holly Robinson-Peete, a married mother of four who beliefs in staying organized and keeping a tight schedule.

Cloris Leachman is an Academy Award and nine-time Emmy Award winning actress who lives in the quaint and quiet community of Topanga Canyon, CA with her daughter Dinah, Dinah's husband Tom and their daughter Hallelujah. Pia Zadora is a Golden Globe Award-winning actress and singer who lives in Las Vegas, NV with her husband Michael and son from a previous marriage, Jordan. When it's time for the swap, Cloris and Pia arrive at their new homes and are immediately not happy.

The wives of Sean Lowe and Jason Mesnick, former cast members on "The Bachelor," swap places. Sean's wife leaves behind her life as a full-time homemaker in Dallas and heads to Seattle, where she takes on Jason's wife's job as a morning radio-show host.

Reality-TV star Angela "Big Ang" Raiola trades lives with actress Alana Stewart, who shares a home with her ex-husband, George Hamilton.

Actor Tommy Davidson's fiancee Amanda trades lives with actor Corey Feldman's fruitarian girlfriend, Courtney.

When actress Kellie Williams trades lives with singer CeCe Peniston for a week, the two gain perspective on each other's lives.

Actor Robert Carradine leaves his reclusive private island to trade places with former professional football player Terrell "T.O." Owens.