San Francisco, are you ready to party this weekend? Well Mad Decent is throwing their 4th Annual Free Halloween Party, and all you have to do to go is RSVP! The absolutely stacked lineup includes up and coming artist Madeaux, along with headliners Gent and Jawns, the mustached hero Valentino Khan, Swizzymack and a couple of other local artists. Check out the 1015 Folsom Nightclub website to RSVP and see all other upcoming events, and get ready for a MAD Decent rager!