Greg O'Gallagher is a social media personality best known for creating the Kinobody brand of fitness coaching. He manages the company's YouTube channel, where he frequently shares workouts, fitness advice, and motivational videos. The Kinobody YouTube channel was established on June 9, 2006, and O'Gallagher posted his first video there on November 15, 2009. In addition to his YouTube presence, he has also built a significant following on Instagram, where he documents his daily life. His YouTube channel has amassed more than 700,000 subscribers.