Thrill.

This week marks the 25th anniversary of Michael Jackson's award-winning "Thriller," and there's at least one party in town where you can truly celebrate it in style.

Flirty Girl Fitness (1325 W. Randolph St., 312-666-2266)—known best for its exotic-dance-inspired workouts—gets into the mix on Friday with the Killer Hottie Halloween Bash, a pre-party offering guests free costume make-up applications, mani-pedis, hairstyling, Flirtini cocktails, and a free "Thriller" dance class where you learn the moves of the infamous video. The event's from 5-9pm for women only, and doors open at 9pm for men. After-party at Le Passage. No cover.

More thrills this weekend:

THURSDAY

HALO [FOR MEN]'s Gold Coast outpost gets into the spirit with a benefit for the AIDS Foundation of Chicago. The premier men's salon will be all dressed up with staffers flitting around in HALO angel costumes. Admission includes cocktails, appetizers, a raffle drawing and comped admission to Underground's Mile High Halloween Bash. 8-10:30pm. 21 W. Elm St., 312-642-4256. RSVP required to rsvp@halochicago.com; $20 suggested donation.

HALLOWEEN

Situated in a loft-like setting above The Joynt, Drinks Over Dearborn, a new spirits boutique, continues its weeklong grand-opening celebration. Tonight, guests get to indulge in special Halloween vino selections, plus free tarot, palm and candle readings. 6-8pm. No cover.

Another Halloween-themed wine event occurs at Juicy Wine Co. with the annual Tasting of Terror IV. Those who arrive in costume may get the chance to win a $50 gift card for Juicy. Plus, they're serving "scary" snacks like stinky cheese and cure meats. The tasting includes Rhones, Rieslings and Syrahs. 7:30-9:30pm. $35.

Do the Bus Stop, Soul Train Line or The Bump as HUB 51 transforms into Studio 51 for one night. They're encouraging guests to come dressed in disco duds for a costume contest. Table reservations required for basement lounge SUB 51. 9pm-2am. No cover.

Fright Fiesta, hosted by the Young Professionals Board of Special Olympics Chicago, happens at Moe’s Cantina. Event includes drinks, food, a costume contest and silent auction. Proceeds support Special Olympics training and competitions offered throughout the year. 8-11pm. $45 in advance; $50 at door (cash only). Call 773-278-2178 for tix.

SATURDAY

The 23rd annual Dark Fright party happens until dawn at Golan Studios on the river. Benefitting Adaptive Adventures—a nonprofit organization dedicated to those with disabilities through outdoor sports and recreation—this is not, however, your typical charity event. Libido Funk Circus, along with the Hey Jimmy Band, Domestic Haze, DJ Rockstar and the always thrilling "mystery guest" perform, plus everyone is required to wear costumes. Also, open bar and appetizers. 8pm-dawn. 1501 N. Magnolia. $65-$75 (for general admission); $150-$175 (RIP package). Call 312-649-1800 for tickets.

SUNDAY

After a hectic Halloween weekend, you'll want to wind down with something majorly low key. Why not check out the the weekly Wine Flights & Small Bites in Carnivale's lounge?! Live Latin music, too! 6-10pm. No cover.