The Hyannis Sound is an a cappella group from the United States.
Founded in 1994, Hyannis Sound has received recognition from the Recorded A Cappella Review Board and the Contemporary A Cappella Society. The group performs regularly and has become a part of the Cape Cod music scene.
During the COVID-19 pandemic in 2020, Hyannis Sound gained a wider audience through TikTok. They have since partnered with brands like Nerds and were featured in Glamour's You Sang. My Song series featuring Alicia Keys, after their cover of "Fallin'," received over 12 million views on TikTok.
Hyannis Sound was founded in 1994 by Townsend Belisle. Inspired by the success of the Vineyard Sound, which he also founded and produced, Belisle formed a similar group on Cape Cod. The group rented a house in Hyannis where they lived together. After years of performances, the group became a performing ensemble on the Cape.
The group currently holds four weekly concerts in areas extending from Falmouth to Chatham and is a registered non-profit corporation in Massachusetts.
In 2020, the COVID-19 pandemic threatened the group's ability to perform. The nine members of Hyannis Sound quarantined together at their Cape Cod home and launched a virtual concert series. Over the summer, the group gained nearly 700,000 followers across Facebook, Instagram, and TikTok.
The group has recorded sixteen albums to date. In 2003, the group also began releasing an annual CD titled, Bootleg, with songs recorded mid-summer from one show and released later in the year.
Hyannis Sound has performed the National Anthem at Fenway Park and various Cape Cod League games. They have been featured in publications including The Boston Globe, Glamour, Cape Cod Times, and Martha Stewart Weddings.
On August 1, 2020, Hyannis Sound released a recording and video of "O-o-h Child" by the Five Stairsteps featuring over 60 alumni, including members from the group's founding lineup.