22st Annual Mayhem and Madness Halloween Bash

The BostonYPA Mayhem and Madness Halloween Bash has sold out every single year since its inception, now at a bigger venue, join us for a spooktakular Halloween Dancy Party. Dance all night to the music of our favorite DJ Wali Shakir! Costume Contest:<ul><li>$200 CASH prize for the the BEST COSTUME.</li><li>Runner up prize packs for each category: Most Original, Sexiest, Best Couple or Group. Prize packs contain gift cards, and are stuffed with swag from local businesses and venues!</li><li>Winners announced at Midnight</li></ul>What's Included:<ul><li>1 Drink ticket when you arrive by 11PM</li><li>Hot Appetizers at 9pm, replenished at 10pm</li><li>Glow sticks, party favors, and a Cauldron full of candy.</li></ul>Advance Ticket holders have guaranteed entry - avoid the lines on Halloween and come upstairs to our dance party. Once sold out, we do start a wait list. This event is 21+, no exceptions. Ticket sales are final. Should you need to cancel your registration after October 1st, please contact us and we will attempt to fill your spot with someone from the waitlist.

Hennesseys(Upstairs)

BostonYPA 

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The most fun, cool and unique things to do in Boston. Can’t miss events, shows and experiences. Concerts, restaurants, bars, free things in Boston and beyond.

The most fun and cool events happening around Boston

Hot and new things to do in Boston

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S11: happening this weekend

What to do in Boston this weekend? From festivals, concerts, performances, free events, screenings and more, Joyraft has the best things to do in Boston.

25+ things to do in Boston/Cambridge/Somerville this weekend

Things to do in Boston this weekend

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S21: roundups

Our top picks: outdoor dining, free events, spring festivals, best bars, upcoming concerts, museum parties - the latest in and around Boston.  Slug: joyraft-top-picks-best-things-to-do-boston-ma

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S28: calendar experiences

This week in Boston

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S20: c+d experiences

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S16: editor picks

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Unique and Can’t Miss Things to Do in Boston

Can’t-miss things to do in Boston 🚨

Can't-miss things to do 🚨

S2 (A): top experiences

The most popular things to do on Joyraft. Concerts, restaurants, bars, events, parties, openings, kid friendly, date ideas, free things in Boston and beyond.

Top 20 things to do in Boston

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100+ free things to do in Boston and beyond

Free things to do in Boston

Free things to do

S19: interest based

Kid-friendly events in Boston

S18: interest based

Where to eat and drink in Boston? Joyraft has Boston’s newest bars, restaurants and specials. Drinks and pre fixe dinner menus. Cambridge & Somerville too.

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22st Annual Mayhem and Madness Halloween Bash

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