CHELMSFORD, MA (April 2026) – The Association of Chelmsford A Cappella (ACA) is proud to present the return of Aca-Pocalypse, Chelmsford’s premier a cappella celebration, on Friday, April 10, and Saturday, April 11 at the Carl J. Rondina Performing Arts Center at Chelmsford High School.
This year’s festival promises two nights of exceptional vocal performances featuring some of the region’s most talented student groups, with each evening offering its own unique energy and lineup.
Aca-Pocalypse 2026Friday, April 10: 7:00 – 9:00 PM (Chelmsford Night)
Saturday, April 11: 6:00 – 9:00 PM
Location: Carl J. Rondina Performing Arts Center, Chelmsford High School, Chelmsford, MA
Advanced discount tickets available at
https://www.chelmsfordacappella.org/copy-of-aca-performanceFriday Night: Chelmsford NightFriday’s show runs from 7:00-9:00 PM
Friday evening will shine the spotlight on hometown talent in a special “Chelmsford Night” celebration, honoring the strength of the town’s vocal music community.
The evening will feature performances by Chelmsford High School’s acclaimed a cappella groups, The Thursdays and The Crescendos, alongside rising talent from the town’s middle schools, McCarthy Middle School’s McMelody and Parker Middle School’s Parker Select.
Adding even more hometown pride to the lineup, Pitch, Please! from Northeastern University will serve as both master of ceremonies and featured performers on both nights. The collegiate group has a special Chelmsford connection, with Chelmsford alumni among its members, making Friday’s performance an especially meaningful celebration of local talent and achievement.
Saturday Night: A Regional ShowcaseSaturday evening expands the celebration beyond Chelmsford, bringing together an outstanding lineup of vocal groups from neighboring communities. So many talented groups are participating this year that Saturday’s show will begin early, running from 6:00 PM to 9:00 PM.
Joining the lineup are Chromatics, NewTones, Notify, Rolling Tones, Perfect Pitch, Notorious, Soundscape, Trills and Chills, and Voices ReChoired, representing communities including Andover, Bedford, Brookline, Marlborough, Millis, Newton, North Reading, and Wilmington.
Hosted by the Association of Chelmsford A Cappella, a nonprofit organization that fundraises in support of CHS’s a cappella groups, the event is a celebration of music, community, and student artistry. Whether you are a devoted a cappella fan or simply looking for an uplifting community event, Aca-Pocalypse offers two nights of unforgettable harmony, rhythm, and local pride. Come celebrate the voices of Chelmsford and beyond. Experience the harmony. Celebrate the hometown talent. Experience Aca-Pocalypse.