Songbirds are Twitter’s co-ed flock of a cappella singers, harmonizing since 2012.

They've performed at New York's Carnegie Hall for Total Vocal alongside The Filharmonic, and have been known to perform impromptu “flashapellas” in Twitter’s San Francisco headquarters, as well as open company events. They’re thrilled to perform with other Bay Area a cappella groups at Techapella for their fourth year in a row. They've also begun collaborating with their sister a cappella group, the Square Registers, whose company is led by their mutual "father"/CEO, Jack Dorsey.

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