Marilyn Manson is known for painting his face with tons of makeup. But, when the 44-year-old visited the set of Eastbound & Down this week, he was almost unrecognizable.

Manson, whose real name is Brian Hugh Warner, shot a cameo for the show's season 4. Many of the cast members were delighted with the idea of having Manson on the final season.

"Honestly, I'm honored," Jody Hill, the show's executive producer, told MTV in September. "I saw Marilyn Manson open up for Nine Inch Nails when I was in high school in Winston-Salem, N.C... So the fact that he's heard of the Kenny Powers series is pretty awesome."

The rocker has been a big fan of the HBO show since its premiere in 2009. However, the lead actor, Danny McBride (Kenny Powers), once said that if Manson were to appear on the show, it might make him hate it.

"You know, I equate it to this: Marilyn likes the show, and maybe it would ruin it for him, if he appeared on it," McBride told MTV News in 2010. "When I was a kid, I worked at Kings Dominion, an amusement park. I loved that place so I thought it would be cool to get a job there, and it's like the quickest way to ruin the all the magic. I hate that amusement park now."

Scroll through our gallery to see photos of Manson with and without makeup.

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