Richard Simmon: The Fitness Guru's 74th Birthday

Richard Simmons appears in a video from 1995. He was known for his short shorts and tight curly hair.

On July 24, 2008, Richard Simmons leads a group of Capitol Hill staffers and tourists in an exercise routine.

On March 17, 2013, Richard Simmons leads the St. Patrick's Day Slimdown class in Beverly Hills.

Richard Simmons appears to be having a good time on the red carpet of the Elizabeth Glaser Pediatric AIDS Foundation.

During Project Angel Food's Annual Angel Awards Celebration, Richard Simmons wears a cool purple jacket.

During the opening of BuzzFeed LA's Office, Richard Simmons dresses in a Western-inspired ensemble.

Richard Simmons At JDRF’s Los Angeles Walk to Cure Diabetes

Richard Simmons At The 2013 Macy’s Thanksgiving Day Parade