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Richard Simmons This goofball got everyones attention back in the '70s and interest only continued to grow. He became the king of aerobics with his crazy outfits in the '90s and his series of Sweatin' to the Oldies. Getty Images

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Olivia Newton-John She wasnt just a Pink Lady, but also a major fitness star in the '80s. Her hit single Physical depicted her as a fitness icon and everyone wanted to follow in her steps (literally). Images Press - Getty Images

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Denise Austin Known as Americas Fitness Sweetheart, her health goals and lifestyle were what everyone wanted to aspire to back in the '80s. She has done millions of videos and TV appearances like the icon she is. Getty Images

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Suzanne Somers Not just an actress on Threes Company, but also a fitness superstar, she was on several infomercials and backed the ThighMaster brand, which boosted her career. Since then, she has written several books as an expert. Getty Images

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Jake Steinfeld Steinfelds Body by Jake made him a fitness icon, and even now he is in the fitness and wellness field by developing innovative products and businesses geared towards performance training. Plus, he trained Steven Spielberg and Harrison Ford. Paul Harris - Getty Images

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Gilad Janklowicz As a star on Bodies in Motion, this Israeli fitness instructor and host was seen as a major fitness player in the '80s. Bennett Raglin - Getty Images

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Raquel Welch Known for the Total Beauty and Fitness Program, she focused on yoga positions and technique to boost overall fitness. Silver Screen Collection - Getty Images

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Jane Fonda This actress was also a champion of fitness in the '80s and onward. Known for her aerobics and high-energy videos, people were clamoring to buy VCRs to stream her videos. Harry Langdon - Getty Images

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Heather Locklear With her own line of exercise videos known as Personal Training Sessions, she was a major fitness iconand she looked pretty damn good in her brightly colored leotards. Harry Langdon - Getty Images

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Kathy Smith A major icon in the '80s and '90s, she's sold millions of videos since then. Harry Langdon - Getty Images

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Tony Little This ponytail-wearing fitness guru was deemed a true fitness iconor rather, Americas Personal Trainerfor his fitness products and appearances. Mike Coppola - Getty Images

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Chuck Norris Known for his martial arts skills, his black belts in judo and jiu-jitsu earned him the recognition as a fitness icon in the late '80s and early '90s. Catherine McGann - Getty Images

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Derrick Evans Known as "Mr. Motivator" in the early '90s, Derrick starred on GMTV, where he donned bright leggings and ran intense workouts with more enthusiasm than you can imagine. Rob Ball - Getty Images

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Cher Cher is a legendary performer, but she will also always be a major fitness icon, thanks to the launch of her book Cher Forever Fit. Harry Langdon - Getty Images

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Fabio Oh, Fabio. Enough said. Beyond modeling, he grew his fitness name through his Fabio Fitness workout video. And yes, everyone watched it over and over. Donaldson Collection - Getty Images

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Susan Powter She blew up in 1994 as a host of her own talk show where she acted as a motivational speaker, trainer and nutrition expert. She also had a pretty great catchphrase: Stop the insanity! Ron Galella, Ltd. - Getty Images

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Don Saladino A trainer to major stars like Ryan Reynolds, Blake Lively, and Hugh Jackman, Saladino is seen as a major fitness guru in Hollywood. NBC - Getty Images

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Billy Blanks Taekwondo and boxing were the inspiration for was Blanks Billy's Tae Bo workout, and his videos were huge in the '90s. Jun Sato - Getty Images

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Bob Harper Known for his appearance in The Biggest Loser, Bob is a pro on all things wellness. Throughout the 2000s, people considered his expertise on diet, navigating health scares, and fitness to be incredibly reliable. John Sciulli - Getty Images

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Shaun T As a master fitness icon with high-energy and high-intensity videos, like Hip-Hop Abs and Insanity, hes been a guest on several big-name shows like The Dr. Oz Show. Robin Marchant - Getty Images

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Jillian Michaels Best known for The Biggest Loser, her career skyrocketed from there and now shes one of the top fitness icons with multiple workout DVDs, books, and more. Dave Kotinsky - Getty Images

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Tony Horton Using P90x in 2003 to pave his way into the fitness realm, he is now a big fitness icon and coach, leading workouts everywhere. Terry Wyatt - Getty Images

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Harley Pasternak A major celebrity trainer, Harley is a fitness guru, motivational speaker, and author. His real claim to fame happened when Halle Berry shared that he helped get her in shape for Catwoman back in 2004. Dave Kotinsky - Getty Images

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Gunnar Peterson A master of personal training to the stars, he launched his first book in 2005 and has been backed by the Kardashians and LeBron James. Maarten de Boer/NBC - Getty Images

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Tracy Anderson Tracy is known for her crazy, high-energy dance workouts, called the Tracy Anderson Method. She made headlines when Gwyneth Paltrow lost a ton of weight after visiting her studio back in 2006, and from there she blew up. Stefanie Keenan - Getty Images

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Jackie Warner After starring in Bravos hit show Work Out, Jackie has become a top fitness icon that people love to watch on the screen for everyday fitness. Patrick McMullan - Getty Images

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Justin Gelband The Victorias Secret ladies know Justin as their trainer, so you know hes made a good name for himself. Adam Bettcher - Getty Images

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David Kirsch Known as the butt guy, hes the one you can credit for giving Kate Upton and Jennifer Lopez their rocking bods. Plus, he wrote a book, the Butt Book, in 2009. Scott Gries - Getty Images

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Mary Helen Bowers Known for her ballet bod, shes whipped celebrities into shape through her Ballet Beautiful technique. In 2010, she helped Natalie Portman score an Oscar for Black Swan, and from there her career took off. Michael Stewart - Getty Images