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Spring Sing & The American A Cappella Alliance

The AACA promotes a cappella ensemble singing of all styles of popular music.
AACA sponsors an annual concert festival called Spring Sing where members and guest groups
share their newest repertoire. We invite you to explore the website to learn more about us.

Counting down to Spring Sing 69 • May 1–3, 2026 • Greenwich, CT

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Join our Spring Sing 69 hosts, the Off Sounders, in quaint & picturesque Old Greenwich for a fun-filled weekend of entertainment, friendship and great a cappella! The venues for the event will include the lovely Hyatt Regency Greenwich and historic Christ Church.

AACA Groups

Augmented 8

AUGMENTED 8
Washington, DC

Ellas and Fellas

ELLAS & FELLAS
Blue Hill, ME

Lake Shore Jive

LAKE SHORE JIVE
Chicago, IL

Off Sounders

OFF SOUNDERS
Greenwich, CT

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CAHOOTS
Ewing | Guilford | Sodus Point

The Detroit Grunyons

GRUNYONS
Detroit, MI

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NEW WIZARD OIL COMBINATION
Denver, CO

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THE WORKS
Boston, MA

Counterparts

COUNTERPARTS
Philadelphia, PA

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JERSEY TRANSIT
Princeton, NJ

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NOTEWORTHY
Detroit, MI

Guest Group Favorites

Coda Singing Group

Coda/Spain

DaVinci’s Notebook / VA

The Bobs

OU Gold Vibrations / MI

Trinity Pipes / CT

Yale Out of the Blue / CT

Route 66 / IL

Interested in being
a guest group?
Contact Us ›

Photo credits
Hero Image, DenverMountains_MarkScottAustinTX
Save the Date Carousel: DenverDowntown_ShashiBellamkonda, WarwickDenverHotel, RevivalDenverPublicHouse, TrinityUnitedMethodistChurch, WoodsBossBrewingCompany

© 2026 — American A Cappella Alliance, a 501(c)(3) nonprofit