JOAN & MELISSA RIVERS TRADE LIVES WITH BRISTOL & WILLOW PALIN, ON THE SUMMER PREMIERE OF ABC'S "CELEBRITY WIFE SWAP"

"Celebrity Wife Swap" is back and all-new on Sundays this summer. Kicking things off SUNDAY, JUNE 23 (8:00-9:00 p.m., ET) are the popular mother-daughter duo of Joan and Melissa Rivers, who trade lives with Bristol and Willow Palin, two daughters of one of today's most controversial politicians, former Governor of Alaska Sarah Palin. This summer "Celebrity Wife Swap" will also feature the girlfriend and wife of former WWE wrestlers "The Nature Boy" Ric Flair and "Rowdy" Roddy Piper, on Sunday, June 30, and actress Nia Peeples will trade lives with singer Tiffany on Sunday, July 7. Three additional episodes will air this summer (subjects to be announced).

"Bristol & Willow Palin / Joan & Melissa Rivers" - Bristol and Willow Palin reside in Wasilla, Alaska with Bristol's four-year-old son, Tripp, who rules the roost. What Tripp says goes in the Palin household. When Melissa Rivers arrives in Wasilla, she's surprised to see snow on the ground - in May! Meeting Willow and Tripp, Melissa finds it a challenge to deal with Tripp's boyish exuberance, and feels that he needs to have a set daily routine. Aunt Willow is no help when it comes to discipline, and in fact is often the instigator behind Bristol's back. But Melissa is determined to bring structure to the Palin home, so when it's time for the rules change, she immediately initiates a new sticker chart reward system for Tripp. She also applies rules changes to Willow, helping Willow to get one step closer to following her passion in a career.

Joan and Melissa Rivers, one of television's most popular mother-daughter duos, live together with Melissa's 12-year-old son, Cooper, in her Los Angeles, California home, which doubles as a television production office and the set of three TV shows produced there. Every day in the house is scheduled to the minute. While the Rivers' home is bustling with assistants, crew members and cameras, the family still find time to sit down together for dinner every night. Stepping into Melissa's shoes, Bristol Palin is not prepared for the Rivers' formality and schedule, and is reluctant to fill in as executive producer of "Fashion Police." When Joan throws a formal dinner party to welcome Bristol, it doesn't go as Bristol had expected, leading her to appreciate her life back in Alaska even more. But Bristol is determined to bring some more fun into the Rivers' lives before the week is over.

In the series, two mothers of celebrity families, each with opposing values, trade households, lifestyles and children (but not bedrooms) in a week-long challenge. In the first part of the exchange, each mom moves into the other's home and agrees to follow a manual of "household rules" written by the departing mother, including: how to parent, manage their social life, do house work, unwind and more. Everything changes in the second half of the week, when "new" mommy" takes charge, introduces her own set of rules and runs the "nest" her way. At the end of the week the two couples meet for the first time. In a raw, honest and highly-charged exchange of views, the couples will make frank assessments of each another and discuss their experiences, having had a very real taste of what life would be like in someone else's family.

"Celebrity Wife Swap" is produced by Zodiak USA. Bruce Toms and Tony Yates serve as executive producers. The series is broadcast in 720 Progressive (720P), ABC's selected HD format, with 5.1-channel sound. This program carries a TV-PG parental guideline.