The world's fastest man, nine-time Olympic gold medalist Usain Bolt, gave a very surprising shoutout to one of the world's most popular comedians in a live Q&A on Facebook.

Bolt was asked who or what inspires him, and mentioned his father and track legend Michael Johnson before opening up about his appreciation for Kevin Hart.

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"Now, surprisingly, Kevin Hart is one of my biggest inspirations because he's always working out. When I look at that, I'm like, I have to work out. So it's something that I definitely look forward to and try to work on."

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Hart actually beat Bolt in a [not very fair] footrace a few years ago.

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Bolt also said he was very nervous about meeting Beyonce.

"I met Beyonce. I was really nervous. I had a conversation all lined up that I was going to do. And when I met her, all I said was, 'Hi, nice to meet you.' And that was it."