BLAIR 2026 brings a Halloween concert to City Hall Plaza on Saturday, October 31 from 6 PM to 11:30 PM. It falls on Halloween itself, and it is listed as free to attend. Plan a costume; it's that kind of night. Boston has 88 other Halloween events within three days of this one.
Saturday, October 31 · 6 PM – 11:30 PM
UTC-04:00City Hall Plaza | Boston, MA
TicketsUSD 0.00
WE’RE BAAAAAAAAAAACK!
Boston’s biggest Halloween celebration is back.
BLAIR returns to Boston City Hall Plaza for another massive Halloween takeover — bringing together live music, DJs, costumes, community, and some of the most exciting women shaping Boston’s creative scene.
Come dressed up or come as you are. Either way, come ready.
From live performances to DJ sets, BLAIR brings an all-women lineup to the heart of downtown Boston for one unforgettable Halloween night.
Halloween in Boston gets cold — we came prepared.
Step inside our tented warming area, grab a hot beverage, warm up, and head right back into the party. The music keeps going all night.
BLAIR goes beyond the stage. Expect food trucks, costumes, photo moments, music, and surprises throughout City Hall Plaza.
BLAIR is Boston’s annual Halloween party and concert celebrating creative women throughout Greater Boston.
Combining Halloween festivities with an all-women lineup of artists, DJs, entertainers, and creatives, BLAIR creates a platform for the women shaping Boston’s music, art, nightlife, and culture.
What began as a Halloween party has grown into a citywide celebration drawing thousands of attendees and creating opportunities for local talent to share the stage with nationally recognized artists.
At its core, BLAIR is about visibility, community, and making space for women to take center stage.
📍 Boston City Hall Plaza
📅 October 31, 2026 | 6:00pm - 11:30pm ET
💸 FREE + OPEN TO THE PUBLIC
Costumes optional. Energy required.
RSVP and meet us at City Hall Plaza.
City Hall Plaza, 1 City Hall Square, Boston, United States
The Blair B*tch Project
It is on Saturday, October 31, 2026, from 6 PM to 11:30 PM, on Halloween itself.
It takes place at City Hall Plaza, 1 City Hall Square, Boston, United States.
Yes, it is listed as free to attend. Check the event details in case registration is required.
Yes, costumes are encouraged.
It runs for about 5.5 hours, from 6 PM to 11:30 PM.
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