Celebrities hit the Halloween fright life in L.A.

For tastemakers and celebrities, the October night-life season can produce scares more terrifying than a 30-minute valet line and crowded bar. Horror shows, pumpkin patches and haunted attractions are popping up all over Tinseltown, and the stars are not shy about showing us the gory good fun.

3rd Annual Los Angeles Haunted Hayride: Griffith Park’s Old Zoo is creepy enough, but the Haunted Hayride folks dress it up with several spooky motifs and top it off with pumpkin pancakes and cider at the finish. Newlyweds Nikki Reed and Paul McDonald, Lauren Conrad, “Glee” guy Chris Colfer, fitness guru Bob Harper and Jamie-Lynn Sigler have all stopped by.

Halloween Horror Nights at Universal Studios: The staple attraction returns with more complex and terrorizing scenarios like the “Scream” franchise’s Ghostface killer stalking guests, Eli Roth’s torture-porn series “Hostel” come to life as a maze, an Alice Cooper to-do called Welcome to My Nightmare and an attraction based on alien flick “The Thing.” Elijah Wood, Demi Lovato and Chad Michael Murray have checked it out. David Arquette even had a reunion with his “Scream” villain and brought along some “Dancing with the Stars” castmates.

Mr. Bones Pumpkin Patch: For the family-inclined celeb, Mr. Bones is a must-see on Doheny Drive near Santa Monica Boulevard, where the sweet kind of carving is permitted. This year, Yoplait steps up to donate $1 to the Los Angeles Regional Food Bank for every pumpkin sold. The likes of Alison Sweeney and Neal McDonough have stopped in to nab pumpkins and offer support.

Hollywood Forever Cemetery: On Oct. 27, Vevo will present a sold-out Six Feet Deep costume party powered by Dubset at the cemetery with expected names like “X-Men’s” Lucas Till, Sasha Grey and Paris Hilton. At the same famous haunt on Halloween Saturday, Pandora presents a mega-costume bash in 3-D, where ticket-buying guests will don glasses for an immersive video projection show and party with a DJ set from the EC Twins.

— Matt Donnelly