This retro footage of Billy Crystal and David Letterman competing against each other in an obstacle race is just as brilliant as it sounds

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Jimmy Kimmel surprised the legendary Billy Crystal with some retro footage on Monday’s episode of “Jimmy Kimmel Live.”

Kimmel brought up a TV show from yesteryear called “Battle of the Network Stars,” on which Crystal appeared as a guest several times. The show involved celebrities competing against each other in various athletic events. The host then showed a clip from an episode that featured Billy Crystal facing off against fellow legend of comedy David Letterman in an obstacle race.

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Crystal romps to victory in the clip, and the present-day Crystal — who was clearly inspired by the physical prowess of his past self — challenged Letterman to a rematch.

“Letterman, if you’re watching this, shave the beard and let’s do it again!”

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