Moses Lanham holds the Guinness World Record for "Fastest time to walk 20 m with feet facing backwards." He is known as "Mr. Elastic Man."
"Contortionist Shows How He Can Walk Forward With His Feet Turned Completely Backwards" (Laughing Squid)
Sofie Dossi, a finalist in this season of America's Got Talent, "is a self-taught contortionist and hand balancer. She became captivated at age 12 after watching an online video. Having been a competitive gymnast and dancer, she had a great foundation of strength and flexibility and advanced her skills using YouTube videos as her teacher, combined with disciplined practice at home."
