AN OBESE SINGLE MOM DETERMINED TO SET A BETTER EXAMPLE FOR HER AUTISTIC SON LEADS THE CHARGE TO RE-CLAIM HER HEALTH AND SPREAD AUTISM AWARENESS, ON ABC'S "EXTREME WEIGHT LOSS"

Holly Robinson Peete, WWE World Heavyweight Champion Seth Rollins, Chef Rocco DiSpirito, and Cirque du Soleil Performers Guest Star

Tiffany (aka "Pearls") - As a teenager, Pearls suffered from eating disorders and had issues with food as she made her way into adulthood. Now a single mother of a teenager with autism, Pearls is an autism activist with an overloaded schedule that has led to bad food choices, resulting in her obesity. Her amazing transformation will be featured in the episode of "Extreme Weight Loss" airing on TUESDAY, JULY 21 (9:00-11:00 p.m., ET/PT) on ABC. Autism advocator Holly Robinson Peete, WWE World Heavyweight Champion Seth Rollins, Chef Rocco DiSpirito and performers from Cirque du Soleil's "La Nouba" guest star in the episode.

Tiffany (296 pounds; Wichita Falls, TX) was given her nickname "Pearls" because she adorns herself with them for every occasion to make herself feel beautiful in spite of her weight. However, underneath her shiny exterior, Pearls is hiding a dark past -- she has struggled with various eating disorders her entire life, from binging, to bulimia and anorexia. Pearls feels that if she doesn't get her disorder under control and make healthier food choices, she won't be around to parent her autistic son, Mason, much longer. With this in mind, she wrote a letter to Chris Powell asking for his help. Her full bio is posted at ABC.com.

The hit show "Extreme Weight Loss" is a unique and riveting, docu-series about weight loss that takes viewers on the unprecedented 365-day journeys of courageous and resilient "super obese" people.

In addition to working one-on-one with Chris and Heidi, the EWL participants will also spend the first 90 days of their weight loss journeys at the renowned University of Colorado Anschutz Health and Wellness Center in Aurora, CO. Chris and Heidi, along with CU Anschutz Health and Wellness Center Medical Director and CU School of Medicine Associate Professor Holly Wyatt, MD, will guide participants on their journeys to safely lose up to half their body weight, as well as the emotional baggage that often holds one back. The CU Anschutz Health and Wellness Center offers some of the country's most advanced research and science-based expertise, focusing on a comprehensive weight loss approach, including fitness, nutrition and wellness services.

Separately, "Extreme Weight Loss: Destination Boot Camp" - where people work with some of the top medical experts from the show, was recently launched at the CU Anschutz Health and Wellness Center, which operates the program.

"Extreme Weight Loss" is produced by 3 Ball Entertainment. JD Roth, Todd A. Nelson, Matt Assmus and Brant Pinvidic are the executive producers.

For more information on "Extreme Weight Loss," visit ABC.com