Dude playing Matisyahu song doesn't realize Matisyahu is right in front of him

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You never know who's hanging out at your jam session.

In a new video, a kid in Maui, Hawaii is playing his own rendition of "One Day," a song by rapper Matisyahu — completely unaware that the original artist is standing right in front of him.

We're not just talking "in the audience." No, Matisyahu is literally right there, wearing a strange and beautiful pair of sandals. And he's singing along.

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"Watch the reveal at the end," wrote Stu Brooks, the director, producer and bassist for Matisyahu who posted the video. "He still didn't believe it was him and it took a second for it all to sink in."

To be fair, this is understandable. Matisyahu has changed his look a lot over the years. Plus, it makes the reveal all the more delightful — and probably saved the poor kid from some hardcore nerves during his performance.