Dust off your thizzle dance, Bay Area. It's time to grease up the groove train—the Mustache Bash is back!. Join us as we dress up and throw down at Stache Bash SF, the best '70s party to grace The Bay since the Summer of Love set it all in motion. An immersive, two-day, dress-up dance party where smashing outfits are a must and mustaches are a way of life, the Bash is heating up San Francisco and funkin' till the fog lifts.