ACA-Pocalypse 2019!

Welcome to the ACA-Pocalypse homepage! Check back here to see ticketing information, featured groups, master class schedules, and how to advertise at the event!



ACA-Pocalypse is a two day a cappella event that will be held on March 22 (curtain is at 7:30 PM) and 23, 2019 (curtain is at 7:00 PM). This event will feature amazing a cappella groups from throughout the Boston area and will be held at the Performing Arts Center at the Chelmsford High School. Workshops and Master classes will also be held on March 23rd, starting at 11:30 AM).


The venue for the ACA-Pocalypse will be the Chelmsford High School Carl Rondina Performing Arts Center. It is a 1,000 seat state of the art facility. The address is 200 Richardson Rd, North Chelmsford, MA 01863.


Want to learn how to sell a solo? Trying to nail that beat-boxing routine? Attend any one of the the Saturday afternoon master classes to learn more about some of your favorite aspects of a cappella!

Master Classes and Workshops to be led by Northeastern University’s The Noreasters, Winners if the 2017 ICCA World Championship!

Please click the button below to find out more and to enroll in master classes:


Are you a local business in the Chelmsford area that would like to take out an ad in our program? Your ad will run on both nights, and will reach up to 2,000 local residents in Chelmsford and surrounding towns!


Each night will feature fantastic groups from around the Boston area. For 2019, we will feature two outstanding headline acts!

On Friday, March 22nd, our headline act will be the 2018 ICCA semi finalist, Northeastern University’s Distilled Harmony! See below!

On March 23rd, our headline act will be world renowned and 2017 ICCA World Champion, Northeastern University’s The Noreasters! See Below!

Chelmsford’s incredibly talented all female group, The Crescendos, and The Thursdays, 2017 and 2018 ICHSA finalist and winner of PBS’s Sing That Thing! will perform both nights. See below!

Friday, March 22nd, at 7:30 PM

Distilled Harmony from Northeastern University (2018 ICCA Semi-Finalist, 2019 ICCA Quarter Final)

The Thursdays, from Chelmsford, MA (2017 and 2018 ICHSA Finalist, 2019 Quarter Finalist, winner of 2018 Sing That Thing!)

The Crescendos, from Chelmsford, MA (2018, 2019 ICHSA Quarter Finalist)

The Jewel Tones, from Marblehead, MA (2018, 2019 ICHSA Quarter Finalist)

Luminescense, from Marblehead, MA (2018, 2019 ICHSA Quarter Finalist)

Feedback, from Chelmsford, MA

Saturday, March 23rd, at 7:00 PM

The Noreasters from Northeastern University (2017 ICCA World champion!)

The Thursdays, from Chelmsford, MA (2017 and 2018 ICHSA Finalist, 2019 ICHSA Quarter Finalist, winner of 2018 Sing That Thing!)

The Crescendos, from Chelmsford, MA (2018 and 2019 ICHSA Quarter Finalist)

The Rolling Tones, from Bedford, MA

Spectrum, from Plymouth, MA


So sorry, but we are no longer taking applications for ACA-Pocalypse 2019

The Nor'easters (Northeastern University) perform "Breathin" (opb. Ariana Grande) on December 11th at the COLLECTIVE: Vol. II album release concert. "Breathin'" Opb.
The Thursdays at the Northeast ICHSA Semifinal on March 11, 2017 - Sullivan Auditorium. Awards given for Semifinal Champion, Outstanding Choreography (Nadya Lisciotto), and Outstanding Soloist (Michael Xavier).
ACA-Pocalypse 11 x 17 Poster 2-5-19 Board Review-1 (3).jpg
Distilled Harmony's set at the 2017 ICCA Semifinal at Boston Symphony Hall on March 26. This set earned the group 4th place. Set: Watercolors (opb. Machineheart) Solo: Isabelle Knezevic Take Me Home (opb. Jess Glynne) Solo: Chris Demirdogen You & I (opb. Pvris) Solo: Tara Kane and Brian McCarthy Love + War (opb.