Richard Simmons through the years

Exercise guru Richard Simmons poses with a stuffed pink pig named Lucy in Los Angeles on June 23, 1982.

Richard Simmons gets a hug from his pen pal Michelle Scaramozza, 6, from Everett, Mass., at a Cambridge department store on Aug. 5, 1982. Simmons was in town to promote his latest book, and met his young friend Michelle, who is afflicted with spina bifida.

Richard Simmons surrounded by models displaying his new line of "Advantage" clothing exclusively for women sized 16-44 in Los Angeles on Aug. 2, 1984.

Simmons admires the doll in the likeness of entertainer Barbra Streisand at the International Doll Art Show in Chicago on Friday, Oct. 6, 1995. Simmons, a doll collector and an avid Streisand admirer, commissioned artist Lisa Lichtenfels to create the piece for $10,000.

Richard Simmons leads students in exercise at the Third Annual Nutrition Advisory Council Symposium sponsored by LAUSD Nutrition Network at California State University in Los Angeles on June 16, 2004.

Richard Simmons speaks to the audience before the start of a summer salad fashion show at New York's Grand Central Terminal in Manhattan on Friday June 2, 2006. Simmons hosted the event which featured fashion made of real and imitation fruits and vegetables.

Richard Simmons leads Capitol Hill staff and visitors through an exercise routine in Washington, DC on July 24, 2004. Simmons was slated to testify before the House Education and Labor Committee about expanding physical education in public schools to combat childhood obesity.

Richard Simmons attends the 2010 World Fitness Day at the Georgia Dome in Atlanta on May 1, 2010.

Richard Simmons at St. Patty's Day Slimdown benefiting the Lollipop Theatre Network held at Slimmons in Beverly Hills, California, on Sunday, March 17, 2013.

Richard Simmons and Lance Bass at St. Patty's Day Slimdown benefiting the Lollipop Theatre Network held at Slimmons in Beverly Hills, California, on Sunday, March 17, 2013.

Richard Simmons arrives at Elizabeth Glaser Pediatric AIDS Foundation's 24th Annual "A Time for Heroes" event in Los Angeles on Sunday, June 2, 2013.

Richard Simmons and Perez Hilton backstage at "Burlesque: Strip Strip Hooray!" starring Dita Von Teese in Los Angeles on Friday, June 21, 2013.

Richard Simmons arrives at the Friend Movement Anti-Bullying Benefit Concert at the El Rey Theatre in Los Angeles on Monday, July 1, 2013.

Richard Simmons and Jane Lynch at Project Angel Food's Annual Angel Awards Celebration in Los Angeles on Saturday, August, 10, 2013.

Richard Simmons arrives at the MTV Video Music Awards at the Barclays Center in Brooklyn on Sunday, Aug. 25, 2013.

Richard Simmons displays the swim cap he is auctioning to raise funds for Diana Nyad's 48-hour "Swim for Relief" supporting superstorm Sandy recovery efforts in New York City on Wednesday, Oct. 9, 2013.

Richard Simmons at BuzzFeed LA's Office Grand Opening in Los Angeles on Wednesday, October 23, 2013.