Cosmoalleycats.comCosmo Alleycats have been a favorite of the San Francisco music scene since the band’s 2010 beginning, bringing to the stage a potent mix of swing and vintage dance music with a dynamic, soulful delivery.Led by vocalist Emily Day (“one of the major singers in her field” – Scott Yanow), Cosmo Alleycats draws from several decades of exhilarating American music, along with inspired originals, to deliver a fun and engaging performance.