Wine Country Entertainment

 Serving Napa Valley / Sonoma / Healdsburg with Musicians / DJs / Bands


The Cosmo Alleycats are a 5-piece swing jazz and retro R&B band based in San Francisco, where they perform weekly at Le Colonial in Union Square. A professional, full-service band, the Cosmo Alleycats’ diverse repertoire is well-suited for all types of events, from weddings to corporate receptions to dance parties.