Richard Simmons, legendary fitness guru, dies at 76

Legendary fitness trainer Richard Simmons has died, according to a report.

Simmons, who turned 76 on Friday, died just 24 hours after thanking his fans on social media for their birthday wishes.

The health guru, who retired from public life a decade ago, rose to fame in the 1970s and 1980s after opening several gyms across the country and releasing his iconic high-energy fitness videos. His death was first reported by TMZ.

This is a developing story, please check back later for further updates.