Organizers kicked off the event Saturday in front of City Hall where thousands converged as vendors sold barbecue and burritos and DJs spun tunes on a large stage.Īdvocates for the lesbian, gay, bisexual and transgender community shared booths alongside corporate sponsors. San Francisco's 40th annual gay pride weekend drew thousands to Civic Center Plaza, with even more expected Sunday for a parade, a Backstreet Boys concert and comments from U.S.