Arnold Schwarzenegger -
The former bodybuilding world champion became a successful actor and, later on in his career, a famous politician. He's a fitness inspiration to this day.
Jane Fonda -
In 1982, the beloved star released a series of videos called 'Jane Fonda's Workout.' The award-winning actress and activist still looks stunning!
Cher has been a fitness icon for years. She released numerous books and videos under the brand CherFitness, and continues to be an inspiration to this day.
Chuck Norris -
He's Chuck Norris, and that's a good enough reason to be a fitness guru. He's still a beast in his eighties, and collaborates with Total Gym on their lines of exercise equipment.
Suzanne Somers -
American actress Suzanne Somers began her acting career in the 1960s, and was the face of the ThighMaster in the 1980s.
Bob Harper - Bob Harper also became a TV personality on the reality show 'The Biggest Loser.' He's a popular personal trainer and diet expert.
Davina McCall - British TV presenter Davina McCall has released a number of successful fitness tapes and is one of the most influential fitness gurus in the UK.
Gunnar Peterson -
Peterson has trained many athletes and celebrities, including the Kardashians and Nick Cannon. He's one of the most popular trainers among celebs.
Jake Steinfeld -
He was considered by many as the "film industry's personal trainer." In the '80s, he was one of the biggest names in fitness.
Denise Austin -
Denise Austin was one of the top fitness celebrities of the '90s. She's still at it, and has released more than 100 videos and numerous fitness books.
Don Saladino - Saladino's client list includes many stars, such as Hugh Jackman and Ryan Reynolds. He's a very popular personal trainer among celebrities who need to get ripped for a big role!
Shaun T - Fitness trainer Shaun T rose to fame by appearing as a fitness expert on shows such as 'The Oprah Winfrey Show,' 'The Dr. Oz Show,' and 'The Tyra Banks Show.'
Tracy Anderson - With clients such as Gwyneth Paltrow and Madonna, it's easy to see how Tracy Anderson became a respected fitness guru.