Shirtless Neil Patrick Harris Reveals Nipple Piercing at Playboy Mansion

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Neil Patrick Harris Kenneth Johansson/Playboy

Who knew Neil Patrick Harris had a nipple piercing?

The How I Met Your Mother actor, 39, surprised partygoers at the Playboy Mansion in L.A.'s Holmby Hills area Oct. 27 when he dressed up as a shirtless vampire. Sporting colored contacts and a black velvet cape, Harris and his fiance, David Burtka, 37, toured the "Castle of Lost Souls" haunted house before strolling through the makeshift graveyard. (The couple are parents to twins Gideon and Harper, 2. The family wore Peter Pan inspired costumes in 2011.)

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"I absolutely love Halloween," Harris told Ellen DeGeneres last fall. "It's the best thing in the whole year."

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Other celebrities who hit up the Playboy Mansion's Halloween party included Chris Brown, Heidi Montag, Jeremy Renner, Kendra Wilkinson, Kelsey Grammer, Ne-Yo, Dev Patel, David Hasselhoff and Paris Hilton. Taio Cruz and Sean "Diddy" Combs performed.

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Harris' How I Met Your Mother — also starring Jason Segel, Alyson Hannigan, Josh Radnor and Cobie Smulders — airs Mondays at 8 p.m. EST on CBS.

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