Fremont Street Experience invites Las Vegas to go all out for “Costumes Under The Canopy” on Saturday, Oct. 31. The free Halloween celebration will feature live entertainment, a silent “spooky” disco and a three-round costume contest awarding $8,500 in cash prizes.

Alter Igor and his band will kick off the live entertainment on the 1st Street Stage at 8 p.m., bringing fan-favorite music, costumes and a spooky stage setup. Between sets, Las Vegas-based, woman-owned Flame Kissed Fire Arts will perform fire-dancing tricks and circus stunts.

The costume contest begins at 10 p.m. on the 3rd Street Stage, with prizes of $5,000 for first place, $2,500 for second place and $1,000 for third place. Contestants must be ages 21 or older and register on-site at the 3rd Street Stage between 7 and 9 p.m. A valid ID is required at registration.

The Halloween fun also extends above Fremont Street with Haunted SlotZilla, featuring spooky décor and spooky music playing throughout the ride. The Spooky After Dark Street Deal runs Oct. 26-Nov. 1, offering $25 Zipline rides and $49 Zoomline rides from 11 p.m. to 2 a.m.

The costume contest judges are Fremont Street Experience President and CEO Cliff Atkinson, Las Vegas Review-Journal columnist John Katsilometes, Neon 93.1 morning host MoJoe Roberts and Westgate Las Vegas Resort & Casino headliner magician Jen Kramer.

Fremont Street Experience is located at 425 Fremont St. in Downtown Las Vegas.