The Beverly Hills studio, called Slimmons, hosted its final class on Saturday (19Nov16) at 11.15am, and almost 60 people travelled from across the U.S. to take part.

Fitness fans aged from 25 to 94 attended, according to Entertainment Tonight, with some coming from as far as Toronto for the hour-long workout.

Simmons, 68, did not appear at the studio on Saturday, however, he wrote a heartfelt message which was read to those at the class by the studio manager.

The fitness guru later shared the note on Facebook, in which he thanked his loyal members who have been attending for years, along with those who came to the studio for the first time.

"I have never been very good with beginnings and endings," Simmons began. "This may come as a surprise to some of you, but I am not the most patient person. I just can't wait for a movie to start, or a new restaurant or business to open, or for class to begin. Hurry up already!"

"When I opened Slimmons in 1974," he continued, "I simply couldn't wait to tell everyone that food could be healthy AND delicious or that exercise could be fun! I worked my little striped shorts off to spread the message that you must move your body every day, that portion size matters and that while others may not always be kind to you, you must be kind to yourself."

Taking his own advice, Simmons revealed he is finally putting himself first, but insisted he was healthy and happy.

"I am making changes and taking time to do the things I want to do. Please know that I am in good health and I am happy. No one has ever been able to tell me what to do and the same is true today. I am still independent, determined and opinionated. I simply am making a new beginning for myself - quietly and in my very own special way," he wrote.

Offering advice to his fans, Simmons told them to "make a new friend. Exercise. Eat a healthy meal. Drink water." But most importantly, "be good to yourself."

His longtime manager, Michael Catalano, confirmed in October (16) the studio was closing, telling Entertainment Tonight it was Simmons hadn't taught fitness classes there for more than two years.