Mustache Bash San Diego brings electronic, electro, funk, and rock music to San Diego, California on March 21, 2026. The single-day festival features headliners Marc Rebillet, Armand van Helden, Danilo Plessow (MCDE), and Blu DeTiger alongside 12 additional artists including Gavin Turek, Razor-N-Tape, and The Mustache Bash Family Band. This electronic music festival showcases a diverse lineup spanning funk, free improvisation, and rock genres with 16 total performers. The event offers fans of electronic dance music and funk a concentrated day of live performances in Southern California.