Milton Teagle "Richard" Simmons (born July 12, 1948) is an American fitness guru, actor, and comedian. He promotes weight-loss programs, prominently through his Sweatin' to the Oldies line of aerobics videos and is known for his eccentric, flamboyant, and energetic personality.
Simmons began his weight-loss career by opening a gym called Slimmons in Beverly Hills, California, catering to the overweight, and he became widely known through exposure on television and through the popularity of his consumer products. He is often parodied and was a frequent guest of late night television talk shows, such as the Late Show with David Letterman.